1959: Carrying the achievement system, she rolled

When getting off work today, Du Yimeng was the first to run away, and the second was of course Qin Chulong.

Wan Ping almost treated the laboratory as his own home. Fortunately, there was a charcoal brazier in the laboratory, so the time was not so unbearable.

"Yu Lang, I have something good to show you." Du Yimeng said to Yu Lang as she arrived at the dormitory. As she spoke, she unbuttoned her coat.

"What good stuff?" Yu Lang, who was cooking with her head down, wiped the water off her hands. In fact, he could guess it even without her saying it.

He was not present at today's awarding ceremony, but he heard about it.

"Look..." Du Yimeng opened his coat while speaking, revealing the medal on his chest. Afraid that he couldn't see it, he puffed out his chest.

Yu Lang, who had just turned his head, subconsciously set his eyes on her chest, and then quickly looked away.

In fact, he couldn't see anything through the cotton jacket, but he couldn't help but think in that direction.

"You are a lesbian, so don't let others look at you like this in the future." He took two steps forward and fixed the buttons of her coat.

"I didn't show it to anyone else, I only showed it to you." Du Yimeng rolled her eyes at him. She was not like Wan Ping who showed off to everyone. She just wanted to share her joy with him.

"I didn't see it clearly just now. Let me look again." As he spoke, he tried to unbutton her coat, but she grabbed his hand.

He could swear that he just didn't want to be a spoiler, nothing else.

"Stop it, I'm showing you something good!" Du Yimeng slapped his hand away and ran back to her dormitory.

When she came back, Du Yimeng was holding something in her arms, and she looked very tired.

Yu Lang quickly stepped forward to take it, and it felt heavy when he held it in his hand. He was puzzled. This thing looked small, so why was it so heavy?

He put the thing on the bed and opened it. It looked like a vest. He looked at her with confusion. What was this?

"Hard body armor," Du Yimeng said in a low voice, and then explained its purpose.

Her tone was obviously lacking in confidence. Ever since Yu Lang was injured and hospitalized, she had been thinking about bulletproof vests. This was the result of her working overtime during this period.

When she first made it, she felt it was too heavy, so she weighed it.

Good guy...

It weighs up to 15 kilograms, which is equivalent to about 30 pounds.

This cannot be blamed on her poor skills, but rather on the fact that she simply could not find the right fiber cloth.

This bulletproof vest is made of special steel, aluminum alloy and other metal materials. Except for the three layers of sturdy canvas wrapped on the outside, the rest is all metal.

She then processed the original material, otherwise it would be even heavier.

Wearing a 30-kilogram steel plate on your body, let alone fighting with others, even the freedom of movement may be affected for those with poor physical fitness.

"This bulletproof vest has only two drawbacks, as you can feel. It is very heavy, and the other is that it has poor flexibility. This requires the wearer to bear more weight whether marching or fighting. Of course, the biggest impact is that it limits the wearer's convenience of movement and flexibility of tactical actions." Du Yimeng explained.

After talking about its shortcomings, she breathed a sigh of relief. The shortcomings were indeed fatal, but the advantages were also very tempting.

After hearing Du Yimeng's explanation, Yu Lang picked up the so-called bulletproof vest with one hand, shook it and looked at it. It was indeed very heavy.

If he wore it, this weight would be nothing to him.

But it may be fatal to others. When fighting with the enemy, things change in a flash and if you are not careful, you will die.

However, this so-called bulletproof vest restricts the wearer's movements, which is precisely the most deadly.

"It also has its advantages. It can effectively block cutting by knives and defend against penetration by high-speed, high-energy bullets. Grenade fragments are even less of a problem." Du Yimeng continued.

When the steel plate was first made, she asked someone to test it and fired several shots at it. Apart from bullet holes and marks, there was no problem with it.

She even put a steel plate on her chest and let someone shoot her. As a result, the person who helped her with the test was so scared that he ran away.

She is such a coward, yet she dares to put a steel plate on her chest and let others shoot her. What does this mean?

This shows that she is very confident in what she has researched, but the person who helps her test it is very unconfident!

Are you afraid of getting shot in the head?

"The person wearing this bulletproof vest must be in good physical condition, otherwise it will not only fail to save his life, but will also harm him." Du Yimeng reminded.

Yu Lang nodded thoughtfully. He understood the meaning and value of this bulletproof vest.

"You have been so busy recently, are you making it?" He stroked the hard bulletproof vest gently, as if he could feel Du Yimeng's care and effort in the production process.

"Well, give me some more time, and I will definitely be able to develop a lighter and tougher material. It can not only ensure the protective effect, but also reduce its weight." Du Yimeng's eyes were surprisingly bright when she spoke.

If one day she could really create a perfect bulletproof vest, she could save many lives.

She was too embarrassed to take out this bulletproof vest because she herself was not satisfied with it.

"Why do you insist on researching this bulletproof vest?" Yu Lang suppressed the upward curve of his lips and asked knowingly.

He knew why, it must be because of his last injury, but he wanted to hear her say it herself.

"Why else? Of course it's to protect your safety. You protect the country, and I protect you." Du Yimeng blurted out the nice words.

She secretly curled her lips. Sometimes men are more hypocritical than women.

If you want to hear something nice, just say it directly. Why do you have to beat around the bush?

It is difficult to guess what a man is thinking, but fortunately she is very smart.

Yu Lang's heart trembled, and his eyes became more gentle as he looked at Du Yimeng. He gently held her hand.

She is already very busy at work during the day, and she has to work overtime at night because of him. How can she be so nice?

"Are you touched?" she asked, looking at him with a smile.

Seeing him, she couldn't help but sigh, who said women are easy to deceive, she thinks men are even easier to deceive.

"Then how do you thank me?" Du Yimeng asked with a smile. She just wanted to tease him, but he actually agreed.

"I'll let you touch me enough this time..." He said in a dark voice. The last time they kissed, her little hand accidentally rested on his abdominal muscles.

Then that mischievous little hand kept stroking it, almost making him lose his composure.

Later, he refused to let her touch him, and she refused to let him kiss her, and they remained in this stalemate for several days.

When he thought about how hard she had worked during this period, all for him, it wouldn't be a big deal to let her touch him.

He almost lost his composure last time, and it was all because of his poor self-control.