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"Oh! There is no way, the master and the master are showing their affection again, they are hundreds of thousands of years old, and they are still like children." Dugu sighed, holding a book of Introduction to Human Immunology, who was reading at night. Sigh, shut the window silently.

    　　These days he has gotten used to it. On the surface, the relationship between the predator and the prey is the master and the master, but in fact it is completely different. Probably they don't know it. The sour smell of love exuding from them is simply sweet. Got bored.

    　　Chengying did not know the complaints made by his apprentice. In his opinion, the student of Dugu Bo is still very qualified. In just a few days, he has learned the basics of biology a lot, and chemistry has also learned the periodic table of elements. All of his elemental characteristics have been memorized, and he is simply a learning tyrant. Seeing that he is eager to try and prepare for practice, he does have the potential to become a big snake pill.

    　　After giving the flintlock gun to the Bingdi and teaching her how to shoot the target, she actually liked the entertainment of shooting, hung it on Chengying's back and started acting like a baby.

    　　"What about the musketeer you said that can fire continuously and can fire more accurately? Make it soon!"

    　　"Uh...this, I want to! But I can't do it! Just this one in your hand, I asked the blacksmith to knock out parts one by one, and then I personally polished and assembled it. Mass production is impossible. As for the more advanced firearms, it is very difficult.

    　　You can see it too! The reason why the musket can be used The bullet is fired using the gas generated when the gunpowder explodes, and the propelling force generated under high pressure. If the thread locking accuracy of the barrel is not enough, the high temperature gas will be ejected from the gap here, blinding the shooter's eyes. Even blow up the chamber directly.

    　　If you want to obtain a firearm that can be loaded and fired continuously, you must improve the processing accuracy of the parts. This is not something I can do alone." Cheng Ying shrugged helplessly.

    　　"What! Then you brag that there will be weapons that can destroy the empire!" The Ice Emperor was so dissatisfied that he rubbed his chin on Chengying's shoulder.

    　　"It will be there sooner or later. I have hired someone to collect all kinds of minerals. When I find the uranium mine, I will not be far from the sun's brilliance." Cheng Ying hugged the ice emperor to her front and stretched out her nose and said: "Our time is still very long, take it slowly, don't worry, let's start with a more comfortable life!

    　　I have made some good things that can remove the sour and astringent taste of fruit wine these days, come! I will show you whether there is no astringency. Fruit wine!"

    　　Bingdi didn't take it seriously, but regarded it as another hot pot-like invention, swallowed and followed.

    　　Chengying knows that the by-products obtained by boiling lard to make soap are important.

    　　Glycerin is an important raw material for unstable high-explosive drugs. It is also a special medicine for treating heart disease. It can make a cup of fruit wine taste better than a cup of silver coin.

    　　This is also one of the treasures of Chengying's town shop... In the

    　　middle of the night, Bingdi, who drank fruit wine as juice, fell asleep on the table and fell asleep. Chengying took the drunk and unconscious Bingdi into it. Behind the bedroom, he couldn't help shaking his head and sighed.

    　　"It's been four hundred thousand years, it's still this body shape, I can't get it off at all!" Although Loli is very cute, it is true that there are not many people who really have the heart to push down.

    　　… In

    　　the days that followed, there were some surprises every day in the calm, either Chengying had come up with some new delicacy, or the snake raised by Dugu and ate the frog again.

    　　When telling Dugu Bo to dissect the frog, this guy didn't even have any resistance at all, which made Chengying more sure that this guy has the potential to become a big snake pill.