After receiving the drawings from Liu Lao's hands, Director Cheng looked at them directly, and soon he was immersed in the drawings and seemed a little obsessed.

"Old Liu, how long will Director Cheng watch?" Five minutes later, Liu Gen couldn't help but ask.

Liu Lao shook his head, he was not very sure, but he knew that since Director Cheng was able to immerse himself in the drawings taken out by Liu Gen, it undoubtedly showed that the 82mm mortar designed by Liu Gen was quite good, and the data in it could withstand scrutiny.

Liu Gen didn't know much about Director Cheng, and before he came to the arsenal, he knew about Director Cheng's existence, but he didn't know the specific information of Director Cheng. Among the units of the Eighth Route Army, the degree of secrecy in the arsenal is quite high, and Liu Gen has almost never been to the arsenal, so he naturally does not know much about Director Cheng.

Liu Lao is different, as a 'veteran' who was at the beginning of the establishment of the arsenal, he knows Director Cheng quite well.

To be able to become the director of the Huangyadong Arsenal of the Eighth Route Army Headquarters, Director Cheng was transferred from Yan'an, and Director Cheng was a top student of the Department of Electrical Engineering of Waseda University in Japan. After being transferred to the director of the Huangyadong Arsenal, Director Cheng put in a lot of energy and taught himself a lot of knowledge.

Liu Gen was a little bored, he looked around the room, and could see that in the room, the most were books. Gazing at these books, Liu Gen found that these books were diverse, including gunpowder manufacturing, motor manufacturing, and even a lot of professional books in Japanese and English.

Looking at these books, Liu Gen was a little excited, when he was in the brigade headquarters, he read all the books treasured by the brigade commander and others. It's just that most of the books collected by brigade commanders and others are books on military command and the history of wars in various countries, and there are very few books on some technical aspects.

For the brigade commanders, what they need to do is to command the troops under their command and constantly inflict effective damage on the devils! The director of the arsenal is due to his own work, and he needs to know all aspects of knowledge, not to mention the degree of proficiency in all aspects, but at least he must have a certain understanding of all aspects.

Some highly technical work not only requires mastering the corresponding theoretical knowledge, but also requires a lot of practice, and you need to do it yourself. Most of the work in the arsenal is undoubtedly some relatively technical work with high technical requirements for workers, and many workers rely on the technology accumulated over the years to produce weapons and ammunition, but some of the theories are not very clear.

Perhaps there is no deep enough theoretical foundation to affect the production of guns and ammunition by these skilled workers, but if they can master enough theoretical knowledge, then the workers will have further possibilities, and they will be able to know what it is and why it is so.

"Elder Liu, can I take a look at the books here?" Looking at Liu Lao beside him, Liu Gen opened his mouth and asked.

Liu Lao noticed the heat in Liu Gen's eyes, understood Liu Gen's state, smiled and nodded, and appreciated Liu Gen more and more. Liu Lao knew that Liu Gen was a genius, just fighting a lot with devils on the front line, and he could design two mortars without enough theoretical foundation behind him, which was enough to show Liu Gen's genius.

Originally, after taking Liu Gen to the arsenal, Liu Lao was ready to take Liu Gen with him and personally cultivate Liu Gen, a genius. Liu Lao doesn't want to see Liu Gen, a genius, die, a genius is good, but he also needs to keep learning, otherwise the genius will also become Fang Zhongyong! Over the past 5,000 years, there have been countless such examples!

With Liu Lao's permission, Liu Gen picked up the book closest to him and looked at it seriously, he was still very interested in the relevant knowledge in the book. With all the technical information in his mind, Liu Gen can still understand the relevant knowledge in the book.

Liu Gen's speed of reading books is still relatively fast, and he has a talent for unforgettable, he can easily memorize the relevant knowledge of this book in his mind, and then completely digest and understand it. By the time Director Cheng came to his senses, Liu Gen had already read most of the book in his hand.

"The design of this drawing is quite good, and some of the parts are very clearly drawn, which is very conducive to manufacturing, and should save a lot of effort on the part of the workers."

"In addition, the data is very accurate, and I didn't find any errors during the review of the drawings, which is very good!" Director Cheng said a lot in one breath, and his face was extremely excited.

Director Cheng clearly knows how important the 82mm caliber mortar designed by Liu Gen is, and with this mortar, it will greatly enhance the firepower of all troops on the front line, and at the same time supplement the 60mm mortars owned by each unit.

The front-line units have 60mm mortars and 82mm mortars, and when fighting with devils, they will not be easily suppressed by devils. It's just that it takes a lot of time to produce enough mortars for all troops on the front line, and this is still based on the fact that it is only supplied to all units of the Eighth Route Army in Shanxi.

"Roots, how did your head grow? I would have thought of designing this 82mm mortar, and it was so well designed! Director Cheng looked at Liu Gen, and the look of appreciation in his eyes could not be concealed.

Liu Gen smiled bitterly, he didn't understand why Director Cheng was so excited, the 82mm mortar he designed was good, but there were also certain shortcomings, and he didn't do it perfectly. However, even if there is a certain certainty of this 82mm mortar, there is no doubt that it will be the most suitable mortar for the Eighth Route Army.

"This mortar still has certain problems, it is not as perfect as you said, Director Cheng, I still have a lot to improve, and I still need to be taught by Director Cheng when the time comes!" Liu Gen opened his mouth and said seriously.

Director Cheng laughed, he looked at Liu Gen with satisfaction, he could see that Liu Gen was very modest, and he completely put himself in the position of junior. In fact, the two mortars designed by Liu Gen don't need to be so modest at all, but Liu Gen is still so modest.

For modest people, people always have a certain good impression, and this is the case with Director Cheng.

"Good! When will Captain Liu come to me directly, by the way, Captain Liu, which department do you want to go to when you come to the arsenal? Director Cheng looked at Liu Gen and asked seriously.

Liu Gen was silent, he seriously thought about the various troops in the arsenal, and Liu Lao's introduction to the arsenal, he remembered it very clearly in his mind. It's just that Liu Gen found that no matter which unit he went to, it was not very suitable, he didn't want to just design mortars, he wanted to have more knowledge about arsenals.

To be precise, Liu Gen wants to learn enough technology in the arsenal to allow himself to have more accumulation, and all departments of the arsenal are not very suitable for him, but he is very interested in all departments of the arsenal.