Fortunately, the five apprentices in the milling group have academic qualifications from junior high schools awarded in the Republic of China. They ranked among the best in night schools in the base area and are rare technical talents in the Red Army. Although they are slow to learn milling processing technology, they are better than many illiterate people.

Warriors are strong.

You know, there are only about 200 people like this who have official junior high school education in the Republic of China. The more than 80,000 Red Army troops can find very few.

Even if the entire organization adds up, it does not exceed a thousand people.

The cast impeller disk on the workbench has completed the benchmark positioning and fixation. A group of apprentice millers with junior high school degrees and night school degrees retreated outside the safe area and stared at the Zhuang Qianding.

The same goes for the other three.

When ready, Zhuang Qianding starts the milling machine.

The entire machinery manufacturing plant is powered by a separate diesel unit. There are four basic units in total, which are man brand medium-sized diesel-electric units with a single power of 50KW. The total power reaches 200KW, which can meet the needs of three machine tools to start production at the same time.

"Buzz!" Accompanied by a dull and powerful sound of motor running, the entire semi-automatic gantry mill was powered on and activated. This GROB semi-automatic gantry mill integrates various cutting-edge machining technologies and is more accurate than the high-precision ordinary mill next door.

The technical content is still high and it has extremely rare mirror milling performance.

This is Made in Germany, which strives to be number one in the world.

The high-speed rotating T-slot milling cutter descends and contacts the surface of the cast impeller disc workpiece, causing a series of metal fragments to fly off.

Zhuang Qianding's eyes were fixed on the impeller disc, his hands were steady and his mind was calm, and he was not in a hurry, carefully controlling this world's top milling machine that he had only heard of but had never touched with his own hands.

To be honest, Zhuang Qianding would never believe it if he had not experienced it personally, being able to control the world's top milling machines made in Germany in northern Shaanxi, China.

Sometimes, reality is so fantastic.

The impeller plate blank gradually took shape and transformed into standard size. The semi-automatic gantry milling operated stably without any abnormalities. After Zhuang Qianding became familiar with this milling machine, the processing efficiency gradually improved.

Just four hours later, in the afternoon of the same day, with the completion of the last machining process, the first impeller disk of the air intake unit was successfully processed. After testing, it met the tolerance standards and reached the level of high-quality products according to foreign production and quality standards.

After finishing the first impeller disc, Zhuang Qianding took a short break and took the time to explain the key points to the five milling workers, and then continued the work of processing the impeller disc.

Whether it is the milling workshop or the turning workshop, the sound of fierce friction between metal can be heard everywhere. The core equipment of the oxygen top-blown converter, the air separation equipment, is in a state of intensive manufacturing.

The efficiency of the machinery manufacturing plant in manufacturing core components, assembling equipment, and transporting them to Yulin determines when the Yulin Iron and Steel Plant test furnace can conduct its first smelting test.

The machinery manufacturing plant is gradually getting on the right track, processing the parts of the oxygen top-blown converter. The construction of the experimental furnace of the Yulin Iron and Steel Plant is also on the right track under the leadership of Yu Hua. The cement plant is about to be completed and put into operation under the guidance of Lin Wan and Zhao Zhangcheng.

Construction is in extremely short supply of cement.

At the same time, the "Introduction to Military and Civilian Guidance" written by Mr. Zhang San also secretly played its role after the first batch of German-made mechanical processing equipment entered the base area.

This 600,000-word book covers the essence of the militia training manual and the Friends of Military and Civilian Talents. It is of immeasurable importance to today's base areas.

Whether it is the Anti-Japanese War class or the night school class in the base area, there is a lot more knowledge content - there are four major chapters including soldier training, conventional weapons use and theory, infantry conventional offensive and defensive tactics, infantry attacking tanks and resisting aircraft, etc.

Value military knowledge.

These contents are for the grassroots high school commanders in the Anti-Japanese University to study comprehensively and try their best to strengthen themselves before going to war.

After all, the day for the Red Army's expedition is coming soon.

The four major chapters covering the civil fields, including grain production and processing, geological exploration and mining, freshwater fish breeding and livestock breeding, planting industry and fertilizer use, are used to spread knowledge and learn the technology through night school classes in the base area.

Then, the organization relied on the logistics department to establish professional groups to make full use of the knowledge and technology contained in the four chapters.

To be honest, no matter what kind of knowledge and technology, it is what organizations are most in need of today.

An introduction to military and civilian guidance is as important to an organization as a traveler who walks in the desert for three days and three nights sees an oasis.

As for the last two major chapters of the Introduction to Military and Civilian Guidance - metal processing and weapons manufacturing, and energy supply, they are regarded as highly confidential content and handed over to the Military Industry Bureau.

As the day of the expedition approached, the base area no longer looked like it had once been dilapidated and backward, but was now in a state of prosperity.

Time goes by slowly like this, bit by bit, and the end of July is getting closer and closer.

…

Headquarters Secret Service.

The mortar test firing site not long ago has now been transformed into a base area mortar training class training ground. The first batch of 28 60-gun mortars produced by the Military Industry Bureau completed the test firing test, but it was not immediately launched.

It is not installed in the troops, but is used as training equipment for mortar training classes.

Artillery is a serious technical branch. Even the simplest mortar is not something that an ordinary soldier can practice. If you want to shoot accurately, you must master basic operating techniques.

If the twenty-eight mortars were directly installed in the army, the actual role they could play would be very low. Moreover, considering that the Military Industry Bureau will produce more and more mortars in the future, it is imperative to cultivate artillery.

After research and discussion at the headquarters, it was finally decided to set up a temporary mortar training class before the expedition. A group of Red Army soldiers with talent and excellent results in night school were selected from various units as trainees to learn mortar operation techniques. After completing the training,

The trainees then carry the mortars back to each unit to continue teaching mortar operation techniques.

As the first self-made 60 mortar in the base area, it was named the 1937-type 60mm mortar by the boss, which means that it was finalized and mass-produced in 1937.

In the center of the training ground, thirty training class trainees from various units formed a formation. On the right side, assembled Type 37 mortars were placed in a row. The scene was like a mortar exhibition.

, arranged in an orderly manner, with a total of fifty doors.

Twenty-two of them are standard artillery pieces that have been produced by the Military Industry Bureau in the past few days and have qualified quality.

Although the Military Industry Bureau has set the basic main line of "Build the basics first, and then engage in weapons production." However, the production of hand grenades, hand-made custom-loaded ammunition, mortars and artillery shells does not conflict with the basic main line.

The so-called foundation refers to the heavy industry foundation dominated by Yulin Iron and Steel Plant, and the so-called weapons production refers to industrial weapons production.

"Hello, comrades, my name is Zhao Zhangcheng. I believe everyone has heard of my name. I will be the teacher in this training class and teach you mortar technology." Right in front of the academy formation, Zhao Zhangcheng, wearing a blue and gray military uniform,

Standing tall with a serious face, he looked around the crowd and said seriously: "Today's first lesson, let's first understand what a mortar is."

Facing this famous artilleryman of the Red Army, the thirty student soldiers all showed respect, stood in standard military posture, and listened attentively.

"The mortar is a type of direct-firing high-trajectory artillery that mainly targets indirectly. It is characterized by a short barrel, a large shooting angle, flexibility, lightness, and high firepower. It is easy to attack targets behind concealed objects. It mainly attacks machine gunners and densely populated areas.

, firepower points, commanders, artillery and other high-value targets, and provide fire support to front-line soldiers."

Zhao Zhangcheng didn't talk nonsense, went straight to the topic, and began to lecture: "Taking it from a battle, as artillerymen, whether your artillery fire is accurate or not can fundamentally determine a battle."

As a member of the top technical team these days, he has been following Professor Zhuang Qianding and learned a lot of knowledge under the familiar influence. Whether it is his speaking skills or the use of words, he is much better than before.

Although Zhao Zhangcheng was born as a farmer, he was extremely studious and would ask questions when he encountered something he didn't understand.

After hearing this, all the students nodded, understanding the meaning.

As Zhao Zhangcheng said, the accuracy of artillery fire is enough to decide a battle, just like the three artillery pieces that saved the Red Army in the battle to force the crossing of the Dadu River. The army only had three artillery shells left. Zhao Zhangcheng hit every target, clearing three enemy firepower points and allowing the attack to

The troops successfully crossed the river.

This is the role of artillery.

"The mortar is divided into three major parts, the barrel, the base, and the gun mount. The target is aimed through the mechanical sight on the gun mount. Of course, in an emergency, the gun can also be operated with one hand. Please pay attention!" Zhao Zhangcheng

He was explaining the dismantled Type 37 mortar next to him, giving the various structures, and his voice was serious and serious.

After saying that, with lightning speed, he quickly picked up the barrel of the gun and put it on the ground. He held the gun in his right hand and aimed at the target point 1.5 kilometers away. With his left hand, he picked up a shell that had been prepared with a fuse and fired it fiercely.

The ground is stuffed into the barrel.

"Bang!" The gun barrel vibrated slightly, and the mortar shells shot out at a speed of more than one hundred meters per second, making a dull sound, and then flew towards the target along the trajectory.

A few seconds later, with everyone watching, the shell accurately hit the center of the target 1.5 kilometers away.

"Boom!" A loud explosion sounded, smoke filled the air, and countless dust was raised into the sky by a pair of invisible hands, and then fell like raindrops.

silence.

silence.

Thirty student soldiers looked at the bullseye in the distance, and then at Zhao Zhangcheng who was operating the cannon with one hand. This scene left them stunned and confused.

who I am?

Where am I?

Can a mortar be aimed with one hand?

"In the past, the troops had no conditions. You couldn't touch cannons and you didn't have artillery shells. Now there are fifty mortars here. Not only can everyone get one, but there are also five shells to fire every day."

Zhao Zhangcheng put down the gun barrel smoothly, turned around and faced the thirty artillery trainees in front of him, and said solemnly: "I can't control others, but for you, my requirement is that everyone must master the skill of one-handed gun operation, do you understand?"

One door per person?

Five rounds a day?

"Understood!" In an instant, all the artillery trainees present were all excited. They suppressed their emotions and responded in unison.

"Okay, let me talk about the aiming method of the mechanical sight next. Here is the direction machine, and here is the height machine. The direction and height of the gun barrel are operated by two wheels. The scale of the mechanical sight here is used to calculate the density position through the target azimuth parameters.

Adjust the scale and density..."

The training ground echoed with the voice of gunner Zhao Zhangcheng.

…

Days passed by and it came to the end of July.

Beiping Nanyuan.

The morning sun was rising, and the sunlight shone on the Nanyuan position filled with gunpowder smoke. This was the irritating smoke produced after the explosion of aerial bombs and artillery shells, which was three times thicker than the gunpowder smoke after bullets were fired.

Above the position, dark brown scorched earth burned by high temperatures was everywhere. The earth was soft and swollen. If you grabbed a handful, there were countless small metal fragments and blood clots that had solidified and turned black. There were various kinds of earth everywhere.

Various human tissues, severed hands and fingers wrapped in blue-gray military uniforms, indistinguishable internal organs, and corpses lying on the battlefield.
To be continued...