The rest of the time, Dou Ying was honest. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

At noon, Qin Yu still made shredded vegetable and egg porridge, grinded the sweet potatoes into a puree and wrapped the sweet potato buns.

Qin Yu didn't say a word, nor did he doubt it, so he ate a fine light.

Xiaoxiong and their jaws are about to drop, sweet potatoes, such coarse grains, even their guards don't eat them. But when she did it, Dou Ying threatened Xiaodong, who was monitoring her, not to say what it was, otherwise, she would not be killed in the future.

After breakfast, Xiaodong believed in Dou Ying's craftsmanship, and he also saw with his own eyes that the prince, who had always had a bad appetite, liked to eat, so he didn't ask.

The prince ate very comfortably, which he had never seen before, so Xiaoxiong and the others all watched Qin Yu eat with apprehension.

Qin Yu ate porridge for the first time all day, and did not embarrass Dou Ying again. Later, he ordered that only she should be allowed to cook, and other groceries would be free.

Dou Ying asked for pen, ink, paper, and inkstone, and locked herself in the room except for cooking.

The next night, Dou Ying held two pieces of paper full of things and placed them in front of Qin Yu.

Qin Yu spread it out and looked at it, his eyes sank.

One of the two pictures is a few rooms that Qin Yu often goes to in the palace, bedrooms, study rooms, and guest conservatories. The point is that various furrows were painted on the ground. The other piece of paper, I don't know what it was about, looked like a large, complicated one, with a large hollow mouth and tubes turning around on it.

The point is that the brush is neat and as if it were skilled.

It's a pity that he didn't know that Miss Dou Ying could not only draw mechanical drawings, but also draw the structure of the gun, the drawing was first-class, and in the police officer exam, she conquered the examiner with a pistol structure drawing in the blank space of the test paper.

"Girl, what is this?" Xiao Xiong asked with wide eyes and admiration, unable to recognize it, but so powerful.

"It's called underfloor heating. Dou Ying was a little proud. Although she is not from an engineering background, she has a wide range of interests and drawing skills. The structure of the floor heating and the stove can be drawn basically.

"Underfloor heating is the use of hot water to supply water to the room. However, in order not to transfer heat too quickly, it is necessary to change the floors of these rooms of the prince to black diamonds. The warm water sink at the root of the wall is two layers, the top layer should be put with fast heat absorption and slow heat dissipation flame rock to maintain the temperature, and the diamond above should be chiseled out of small holes, which can not only achieve the effect of water vapor coming out, but also change the problem of too dry in the house. ”

Qin Yu's eyes stared at the drawings for a long time, and he raised his eyes to stare at Dou Ying.

Dou Ying knew that he must be stunned, and he was even more suspicious of her, but the principle made sense, and it was not difficult to think that since the Tang Dynasty, there have been mechanical heating houses for summer, but floor heating in winter was not available in ancient times. Moreover, she thought about it for two days, but she didn't find any point that guaranteed to stop Qin Yu.

"It is said that there is a room in the palace that cools off in summer, and the principle is the same, except that there is a huge stove. Dou Ying still explained.

"You can go back to Dou Mansion. ”

Qin Yu's words that couldn't hear the emotion made Dou Ying overjoyed, as long as he didn't stay by this cold-faced demon king all day, it was good, at least he could sneak out and find an opportunity to escape.

"But girl, I'm afraid no craftsman can do this. Xiao Xiong is very happy, so that the prince does not have to worry about freezing.

And Qin Yu's next words made Dou Ying suddenly want to kill.

"Don't worry, she comes to the palace every day to continue cooking, and supervises the work by the way. After Qin Yu finished speaking without any burden, he waved his hand, "Send her away." ”

Dou Ying was full of sincerity and waited for the eighteenth generation of Qin Yu's ancestors, turned around helplessly, suddenly stood still, and turned around.

"Lord Wang, the copyright of this floor heating is mine. ”

Qin Yu slanted her, what the hell is copyright?

But he won't ask, that would show how ignorant he is, how ignorant he would be? So, he definitely didn't ask.

Dou Ying didn't expect this stubble: "If anyone fancy this floor heating and wants to build it according to the drawings, I will charge for it." ”

Greedy!

Qin Yu swept her with contempt.

Dou Ying didn't care, and stretched out a finger: "One thousand taels and one set." ”

"Five-five. Qin Yu spoke idly and quickly, and the face of the profiteer was exposed.

Dou Ying opened her mouth, it was too dark!

However, people are powerful!

With a roll of his eyes, it's okay to have five hundred taels, not to mention that if this guy has money to collect, he will work hard to promote it, right?

"A word is a certainty! There is no evidence for empty words, and words are proof!" Dou Ying pointed to the desk.

Qin Yu was rarely refreshed, and immediately wrote down the voucher with a pen and threw it to Dou Ying.

Dou Ying was very satisfied after reading it, put the note into her sleeve, and suddenly stepped forward, grabbing Qin Yu's belt affectionately.

Qin Yu looked at her vigilantly, the cunning rabbit's eyes flashed, and then he saw her seriously helping him to help him with his belt, but in fact, the belt was not crooked at all.