On the fifth day of the Chinese New Year, Li Siming returned to Harbin. Before leaving, he lied that there was a temporary task in the Corps and needed to go in advance. He did not want to cause unnecessary worry because he told his parents the truth.

Harbin on the fifth day of the New Year is still immersed in the atmosphere of the Spring Festival. There are endless pedestrians visiting relatives and friends on the streets. Walking on the street, the sudden sound of firecrackers from the children frightened the pedestrians. When they came to their senses and thought about urging them to blame, the children had already run away.

When Li Siming arrived in Harbin, it was still early to agree with Director Jiang to pick him up, so Li Siming decided to take a walk around.

Harbin, the city with the most developed heavy industry in China, is filled with a faint smell of coal smoke in winter, just like other northern cities, gray.

The famous Sophia church is to be seen. The tall and pointed roof is the typical Russian Orthodox architectural style. Li Siming visited this church in his previous life and had long become a cultural relics protection unit. It is said that this church is exactly the same as the one on Moscow Red Square, just a small number.

Along Zhongyang Street, Li Siming slowly watched the typical Russian-style buildings on both sides of the street. He was surprised that these exotic buildings that symbolize the history of foreign colonization in China are still preserved intact. However, most of these buildings have become state-owned assets, including Xinhua bookstores, restaurants, bakeries, and department stores. The big liba (Russian bread) and beer sold on the street are the most popular among tourists, and the Russian dishes in the Belarusian restaurants such as red cabbage soup and fried apples are also very popular. Li Siming couldn't understand why these alien restaurants can survive until now?

On Central Street, the streets paved with green stones, tourists come and go. From time to time, young people hold red books, fiddling with POSS, stand on the street to take photos, and children fly around the crowd like butterflies. If you meet an acquaintance, you hold your hands and chat on the street. Li Siming walked north along the street to her end - the flood control memorial tower, which was built to commemorate a flood fighting. Groups of artificially raised white pigeons hover around the memorial tower. If a tourist takes out the corn kernels they brought or purchased, the pigeon flew down on the hands or shoulders of the tourists. A friend next to him quickly took out his camera and pressed the shutter.

The flood control memorial tower is on the edge of the Songhua River. In winter, Songhua River is a frozen world. Li Siming even saw a truck driving carefully on the river surface. Dogs or donkeys pulled pears and carried tourists on the river, and sometimes children were screaming loudly in the car. Candied haws and marshmallows are popular goods. Parents who are usually short of money also generously paid for their children. Opposite is the famous Sun Island. Li Siming remembered the song "On the Sun Island", a song that singer Zheng Xulan once sang, which was specially sang for Harbin people. Li Siming even remembered the Sun Island brand cigarettes he had smoked. I wonder if there is this brand now.

Li Siming stood on the riverside and looked at the Sun Island. He suddenly felt a little sentimental. He remembered that when he first came in his previous life, he was attending a certain type of military radar. After the meeting, more than a dozen experts came to the riverside to play. I remember that he was the youngest among his peers at that time. Even those accompanying staff thought they were assistants or drivers, and they made a lot of jokes, which made the hospitality master very embarrassed. Now he was standing by the beautiful Songhua River again. His past life had long passed. The leader, colleagues, subordinates, and career were also isolated from him. Li Siming thought to himself, in another world, his memorial service had already been held, maybe there was a title of martyr, will anyone visit the grave during the Qingming Festival?

Li Siming couldn't help laughing out loud for his strange thoughts, which made everyone beside him salute. He quickly turned around and walked back with guilt. He found a White Russian restaurant, had a good meal, and returned to the train station in the afternoon with his belly. Just a while ago, Director Jiang drove his broken jeep, and the first sentence he met was: "Teacher Li, I'm sorry, this New Year's Day brings you from home."

"There is nothing wrong with me. I'm serving the people." Li Siming is becoming more and more accustomed to this era, and now he can also reach the level of quotations of great men or buzzwords of the times at any time.

This time, Director Jiang prepared very well, and there were a lot of people. All of them rushed to the factory from home to report. Those employees who didn’t catch up with their family last time regretted not attending the class last time because they had something to do. Li Siming was also well prepared this time. The lecture before the Spring Festival gave him a deep understanding of all the situation in the military factory, so this lecture was very targeted. Similarly, Director Jiang still arranged several recorders to record Li Siming’s teaching content, and then kept it in the technical archives room as a treasure.

"Mass is the key; mass is life. This is definitely not an exaggeration for me! The loosening of a screw will cause a fighter to explode in the air, and we will have to train a pilot to spend a gold value equal to his body weight. We can continue to build the aircraft, but the training of a pilot will cost a lot of money and time. When facing the enemy, when our heroic warrior pulls the trigger, he finds that the steel gun in his hand is stuck at the critical moment. A hero died heroically because of the inferior rifle or bullet we produced. I think this is murder, it is our collective murder..."

"So we must establish the concept that quality is life, and strive to improve the quality of every product we leave the factory to the highest level. The Type 63 rifle is a living example. The design drawings are changed at will, and the approval is considered nothing at all. In production, the quality is not only a matter of quality problems for the factory products. This is not only a joke about the lives of our soldiers, but also a serious waste of national supplies..."

"We must aim at the technological development trends of technologically advanced countries in the world, be enterprising and constantly innovate, so that our army can not lag behind in weapons and equipment in future wars. There are many technical files translated from abroad in the technical room of the 0916 factory. I think it is very good. We can absorb useful things from them. Of course, we must adapt to local conditions, use what we can use, give full play to the subjective initiative of the vast number of employees, and strive to be the best. If there are conditions, we must create conditions, and if there are no conditions, the spirit of Daqing tells us that as long as we fully exert subjective initiative, be responsible for work, and be responsible for every product, we can produce good products..."

"Some comrades complain that our factory's production line is too old, and it was introduced from the Soviet Union in the 1950s, so it is understandable that the product quality and accuracy cannot keep up. I don't think so. We can also modernize the old production line to meet our new needs. Please see, this is a new design drawing I have transformed based on the original design of the existing production line in Factory 0916. Engineer Ding also believes that it is completely possible to start, and there is no need to reinvest. Just use existing equipment and parts to adjust it, which can fully meet the needs of light weapons production."

...

Li Siming stayed in Factory 0916 for 10 days. Within this 10 days, he not only helped design and renovate the factory's old production line, but also revised several textbooks based on his lecture notes. These are all things Director Jiang and Engineer Ding dreamed of. During these 10 days, Li Siming devoted himself to his work, giving him the feeling of returning to his previous life in the research institute. There was a powerful force in the dark that drove him to devote himself to his work with abundant energy. His serious and responsible attitude and spirit of striving for excellence in his work made all the employees of the factory admire him.
Chapter completed!