Wang Cuiju accidentally said what was in her heart.

Hearing her daughter's words, she thought about it, and she was right, her daughter was able to engage in scientific research at the age of fourteen and generate income for the country, and she has done a lot of things in recent years.

"Yes, my daughter is not an ordinary person, she is a genius!"

Liu Qianqian chuckled, "Mother, I'm hungry, you can cook me something delicious!"

"Okay, today is your big day, I'll make you more delicious food!"

Liu Qianqian nodded with a smile, "Mother, I want to eat the braised pork you made, as well as the braised pork ribs!"

"Do it, do it, do it, your favorite mother will do it for you!" Another foodie girl, Wang Cuiju is still acceptable, who made this foodie girl so powerful.

"Thank you, mother!"

......

"Dr. Liu, do you need help?"

Liu Qianqian shook her head, "No need, thank you!"

Although the man was a little disappointed when he saw this, he was very impressed when he saw Dr. Liu doing the experiment so seriously, especially when he saw that the experiment in Liu Qianqian's hand was perfect, there were no mistakes, and he admired Liu Qianqian even more, and sure enough, the big guy was the big guy.

"Is there anything else?"

The man smiled awkwardly, "I have a few questions for you, do you have time?"

Liu Qianqian took off the gloves on her hands, nodded, and looked at her watch, "There are still fifteen minutes to get off work, give you fifteen minutes, is it enough?"

The man nodded, "Enough, enough!"

The man handed over the scientific research materials in his hand, and made a detailed record on it, and at first glance he was a diligent and studious child, Liu Qianqian nodded in her heart, not a fist embroidered leg.

"You don't understand here?"

"Yes!"

"You should use the tap equation here, you can also use ...... And here, you can try to change the material, I think cadmium is good......"

"Yes, I see, I understand, okay, I know, yes, yes!"

"Alright, that's all for today!"

"Okay, thank you, Dr. Liu!"

Liu Qianqian shook her head, "You can try to combine different materials, use the calculation equation just now, and you should get different results!"

"Thank you, Dr. Liu!"

Liu Qianqian nodded, and then left the laboratory, as soon as Liu Qianqian left, others surrounded her.

"Liu Xiaofang, you can, you dare to ask Dr. Liu a question, awesome, amazing!"

"Liu Xiaofang, do you have other intentions, say?"

"Xiaofang, how is it, is Dr. Liu as rumored, particularly difficult to contact and cold?"

Liu Xiaofang looked at the colleagues around him and shook his head, "Dr. Liu is very good, she is very thorough in every question, to the point, and Dr. Liu has a very good attitude, are you misunderstanding anything, as for the attempt, Dr. Liu is the goddess in my mind, how dare I have any other intentions!"

Liu Qianqian was ready to go home after finishing a day's work, but on the way she met Zhou Lao who came to her, and Liu Qianqian was very respectful to Zhou Lao, so naturally she couldn't go home by herself.

"Sissi, I have a problem here, you can help me see if there is a solution!"

Liu Qianqian nodded, followed behind Zhou Maolin, and after arriving at the office, Liu Qianqian knew that Zhou Lao gave her a car engine information, at present, there is no own engine in China, basically relying on foreign imports, Liu Qianqian really didn't consider this aspect before, but after looking at the above data and performance, Liu Qianqian shook her head, this engine doesn't seem to be too ideal.

An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc.

The information in Liu Qianqian's hand is an internal combustion engine, but a lot of the data on it is not right, Liu Qianqian looked at Zhou Lao, "Didn't you find that the data on this is wrong?"

Zhou Lao nodded, "You can also see that we have studied for half a year, but we have never been able to get the correct method, and then we speculated backwards and found that the data was bad, and then after some modifications, you look at these data!"

Liu Qianqian nodded and looked at the data, but the data on it was correct, but there were still many limitations.

"Have you ever thought about using an electric engine? ”

"Electric generator?"

"It's an electric car!"

Zhou Maolin was stunned for a moment, and didn't seem to react, "Electric vehicles? We have also made ideas, but many things can't be realized, it's difficult!"

Compared with fuel vehicles, the main difference between pure electric vehicles lies in the four major components, the drive motor, the speed controller, the power battery, and the on-board charger.

The speed of pure electric vehicles, and the starting speed depends on the power and performance of the drive motor, the length of its driving range, depends on the size of the capacity of the on-board power battery, the weight of the on-board power battery, and depends on the choice of what kind of power battery such as lead-acid, zinc-carbon, lithium battery, etc., their volume, specific gravity, specific power, specific energy, cycle life are different.

The drive motor of pure electric vehicles is DC brushed, brushless, permanent magnet, electromagnetic, and then AC stepper motor, etc., and their selection is also related to the vehicle configuration, use, and grade.

In addition, the speed control of the drive motor is also divided into stepless speed regulation and stepless speed regulation, and there are electronic speed control controllers and non-speed control controllers. The electric motors include in-wheel motors, internal rotor motors, single motor drives, multi-motor drives and combined motor drives.

Liu Qianqian said a lot, Zhou Maolin's eyes are getting brighter and brighter, if they can really develop an electric car, not only can they have an independent engine, but also can protect the environment, this is definitely the best choice, but their current car technology, it seems that it can't reach it!

"You don't have to worry about technical problems, I can provide it to you, you just need to prepare materials and manpower!"

"Really?"

Zhou Maolin's eyes lit up, and the brightness was amazing, Liu Qianqian nodded, "Tomorrow I will sort out a piece of information on the core technology of electric vehicles for you, you do experiments first, I still have a little experiment in my hand, and I will go to you after I am busy!"

"Okay, that's it!"

Zhou Maolin is not impulsive, but has absolute confidence in Liu Qianqian, so far, what Liu Qianqian says and does is not unsuccessful, and they don't know how much Liu Qianqian has in her head.

But they know that Liu Qianqian has mastered all the books in the National Library, and once there is any information in it, a copy will be prepared for Liu Qianqian, which is enough to see how much attention the above attaches to this little girl.

Liu Qianqian was not busy with other projects, it was nutrients, and she did this because her brother was going to go abroad on a mission in a few days, she was afraid that Liu Qinghe would not be used to eating foreign food, and the dry food had no nutrition, so she could barely fill her stomach, so she thought of nutrients.