In the apricot forest hall, the boundless apricot forest, and a pavilion near the water, Zhou Jue held a tea cup in his hand and looked at the clear spring in front of him in a daze. A few yellow leaves are falling, indicating that autumn is approaching.

The apricot forests in the mountains are no longer green, and most of the leaves are a little dark green, but many of them are yellow, even withered yellow, and burnt red.

A gust of wind blew, and the leaves rattled, and many yellow, reddish leaves danced.

A little light footsteps woke up Zhou Jue. He didn't need to turn his head, the Yuan Shen in his infancy saw his sister tiptoeing over, holding a dogtail in her hand, and a little mischievous smile on her face.

Zhou Xueyao got closer and closer, and suddenly shouted behind Zhou Jue's ear: "Brother!"

Zhou Jue was startled and turned his head to stare at Zhou Xueyao.

Zhou Xueyao jumped away with a smile and waved the dogtail grass in her hand: "I knew that my brother must have found out." But you're still scared by me!huh!"

Zhou Jue smiled helplessly, "Didn't you say that you want to study your medical skills, what are you doing here?" ”

Zhou Xueyao pouted: "I see that my brother has been in a daze for the past few days, come and see you." Wouldn't it be nice to care about you!"

"Hehe...... Zhou Jue sat down, "It's nothing, it's just a review of what happened during this period of time." ”

"Hehe!" Zhou Xueyao learned Zhou Jue's tone, "Brother, as long as you say these two words, it means that you are perfunctory!"

The smile on Zhou Jue's face was a little stiff, and he slowly poured himself a cup of tea, "I know that I can't hide it from my little sister." Little sister, what do you think of Zhang Hao?"

"What's how?" The expression on Zhou Xueyao's face was a little surprised, and her expression was a little flustered.

Zhou Jue showed a little triumphant smile on his face: "Little sister, what's wrong with you?" I just want to ask what you think of Zhang Hao. This Zhang Hao makes me feel extraordinary. And the situation of the Zhang family also makes me have a lot of doubts. ”

"Let's talk about it~" Zhou Xueyao lay on the table, supporting her chin with her hands, her eyes were a little slender, revealing a little cunning.

Zhou Jue nodded Zhou Xueyao's brows: "You." Have you noticed that the Zhang family calls craftsmen workers, and the workers of the Zhang family, whether it is clothing, spirit, or even cultivation, are different from other families.

Although the workers of the Zhang family were wearing shabby clothes on the outside, their clothes on the inside were very clean, and I even saw many people wearing fine cotton cloth and fine silk inside.

And all the workers, all with red faces and smiles on their faces, their heads held high.

Then there is the cultivation, the craftsmen of the ordinary family, the cultivation is the third layer of qi refining, and there are very few more than six layers, but the workers of the Zhang family are mostly cultivated to four or five layers, many of them are six layers, and there are even many of them who exceed seven layers.

Most importantly, have you noticed Huang Mingshan, Hou Shangzhuo and others, these people...... I think that behind such changes in the Zhang family, I am afraid that the role of these people is indispensable. ”

Zhou Xueyao blinked: "I also found something about Zhang Hao, he has an extraordinary understanding of medicine, more precisely about the human body." ”

Saying that, Zhou Xueyao gave Zhang Hao a general idea of what he said about the human body.

Zhou Jue listened and said slowly: "This Zhang Hao has a lot of secrets. ”

............

In Zhang's house, Zhang Hao was listening to Huang Mingshan explain the new burner.

The burner is cleverly designed, the fuel injection pipe will be heated through the low-temperature area of the flame, and finally through the blessing of the flame formation, it will be excited together with the aura in it to form a purple-gold flame.

The temperature of the flame was very high, Huang Mingshan took an iron bar for experiments, and the iron bar quickly became red hot and softened, and after about ten seconds, it completely melted.

"The temperature is at least three thousand degrees!" Huang Mingshan's tone was very sure, "This kind of flame is enough to melt an ordinary alchemy furnace, I want to refine an ordinary Pei Yuan Dan, it is enough." ”

"Don't think about it, it's useless to think about it! You prepare this burner, and I'll show it to Senior Brother Feng Zhiling to see if it can be used for alchemy. ”

"Okay!" Huang Mingshan turned off the flames, and when it cooled down, he immediately packed it into a small box.

Zhang Hao looked at it and nodded appreciatively. Putting this set of equipment in a box is very convenient for storage, use and transportation. The R&D capabilities of Huang Mingshan and others are becoming more and more meticulous.

Zhang Hao took this equipment to Feng Zhiling for inspection, Feng Zhiling used it for a while, and gave a little advice: "This kind of flame is very good, almost with the strength and effect of ordinary demon pills to generate flames." But...... The aura is a bit mixed, and this kind of flame refining low-level magic weapons is okay, but it can't refine the elixir. ”

After speaking, Senior Brother Feng Shi Shiran stuffed this set of equipment into his storage ring.

Zhang Hao: ...... Cheeky, brother!

Zhang Hao returned to Huang Mingshan with a black face, feeling a little sorry for Huang Mingshan.

I didn't want Huang Mingshan Shi Ran to take out another one from under the table, "I've thought about it a long time ago, this thing must be tested by Feng Zhiling, so I made two." The one just now was done roughly. ”

Zhang Hao: ......

Feng Zhiling, Feng Zhiling, the face of the Xuanzhen Sect has thrown you into the stinky ditch!

Knowing the reason, Huang Mingshan and others will detect and improve it themselves. The reason for the confusion of the aura is that the classification of oil refining products is not detailed enough.

Huang Mingshan and others now have enough knowledge and experience in physics to immediately start experimenting with new fuels.

For some time, Huang Mingshan and others have been studying the distillation of oil. It is now possible to distill a relatively pure liquid.

This liquid, which is obtained by re-distillation from the previously named 'high-grade fuel oil', is as clear as water, but very light, and because it contains a large amount of relatively pure aura, it exudes a clear aura.

Huang Mingshan and others named it "naphtha".

Hearing this name, Zhang Hao was a little surprised - how do you know the name naphtha?

Huang Mingshan was still laughing: "When we named it at that time, we also wanted to name it spiritual oil, jade oil and the like, but Chen Feng said that this new oil product is like squeezing out the brain of the spirit stone, so it might as well be called naphtha."

That's a good name for us. That's why it's called naphtha. ”

Zhang Hao: ......

............

The time was inadvertently seven or eight days, and during these seven or eight days, the Zhang family was very busy, and the most important thing was to produce a new burner and refine a large amount of naphtha.

After Feng Zhiling's inspection, the naphtha has fully reached the standard of refining Pei Yuan Dan. Most of the pills used in the Qi refining period, including Pei Yuan Dan, Xiao Ling Yuan Dan, Qi Nourishing Pill, Qi Replenishing Pill, etc., can be refined with this new flame.

Even medium-grade and low-grade magic weapons can be refined with such flames.

"It can almost bring out more than eighty percent of the medicinal properties and spiritual materials, which is already comparable to an ordinary demon pill flame. ”

"Then senior brother thinks that the price is appropriate?"

"Ordinary foundation building period demon pill, one costs 500 spirit stones, it can be used for two days. So, you can set the price yourself. ”

As he spoke, Senior Brother Feng Zhiling naturally cleaned up the burner, stuffed it into his storage ring, and took a bucket of naphtha next to him by the way. When Senior Brother Feng did these things, he was not jerky at all, and he took it for granted.

The corners of Zhang Hao's mouth twitched, but he turned his head to Huang Mingshan and the others and said, "Clean up, I'll leave at noon." Go to Xinglin Hall. Huang Mingshan, you follow. ”

"Yes!" Huang Mingshan was overjoyed, and his voice was loud. This young man, who only dared to sit on half of the chair when he saw Zhang Hao, has learned to hold his head high.

(This week's recommended votes, it is expected to reach 7,000, get rid of everyone, the end of the world will roll first~)