Seeing Liu Feng and Professor Wu Qingquan greet him, Zhang Qin nodded, turned around and introduced to the Great Elder: "Elder, this is Professor Wu Qingquan of Shuimu, and this is Professor Liu Feng and Liu." ”

His eyes swept over the two scientists for a while, and when he saw that Liu Feng was really dressed like an immature high school student, the elder's heart was also shocked, he nodded, adjusted his expression a little, and took the initiative to step forward and hold Mr. Wu's hand: "Professor Wu, it's hard work." ”

"Where, where, Elder, you have worked hard. ”

Mr. Wu said politely.

His gaze fell on Liu Feng's body again, the old man paused for a moment, his expression changed slightly, changed to a solemn expression, and stretched out his right hand to say.

"This is Comrade Liu Feng! Professor Liu, I have admired my name for a long time. ”

Liu Feng also hurriedly stretched out his right hand, and with admiration, he held the old man tightly together, and said excitedly:

"Hello, Elder, I'm Liu Feng......"

For a while, he was so excited that he couldn't say the next words, forgot his lines, and his face turned crimson.

Seeing this, the old man gently patted Liu Feng's palm with his left hand and comforted him in an amiable tone.

"Little comrade, don't be nervous, am I more terrible than the demons and monsters in Journey to the West? haha!"

The old man laughed.

"Haha!"

Several people around laughed too.

Laughter diluted the tense atmosphere.

After the handshake, Liu Feng touched his head embarrassedly and laughed twice.

Seeing that Liu Feng was no longer so excited, the old man patted him on the shoulder: "Professor Liu, hurry up and take me to visit your laboratory, I can't wait." ”

……

In the laboratory, it has already been neatly packed, and even some volatile and smelly chemical reagents have already been removed.

Subsequently, under the leadership of Liu Feng, the host, the old man walked into the laboratory.

"Here is the reagent table, which mainly places some ordinary chemical reagents, here is the fume hood, which is used to do some experiments that need ventilation, and here is the reagent cabinet......"

Liu Feng briefly introduced the manipulation of the laboratory.

The old man's eyes followed Liu Feng's guidance, nodded at the same time, and shook hands with several experimenters who were sitting in danger, and said, "Hard work."

The experimenters who were taken care of by the old man were naturally flattered and excited.

After a brief introduction to the layout of the laboratory, it is time for today's event.

Next to an empty experimental table, several rows of bottles and cans and some incomprehensible instruments and equipment have already been neatly placed, and next to these things, a black film looks like something lying quietly on the experimental table.

Liu Feng brought the old man here, looked at the 'equipment' in the stands, took a deep breath, pointed to the film on the stage and said: "Elder, this is the new reverse osmosis membrane material we have developed - porous carbon fiber microcrystalline graphite oxide composite!"

"Oh, really?"

The old man's expression became serious for a moment, and his eyes were fixed on the black film on the table. Although he has seen the efficacy of this new material in the information submitted by Zhang Qin, it is one thing to see it, and it is another thing to contact it in person, and he has been a 'god friend for a long time' for this new material.

After a while, I heard the old man sigh:

"That's what it is, Professor Liu, can you introduce me to it?"

"Yes, Elder!"

Liu Feng had already prepared.

This time, unlike the last visit of Zhang Shuji, the treacherous Professor Liu did not bring Wang Guangxu to be a strong man.

After all, this kind of opportunity to be in the limelight, he didn't have time to laugh at it himself, how could he give it to others!

Considering that for some specific professional data, the elders should not understand it very well, and it is not easy to explain, therefore, Liu Feng did not waste time, only selected some important data and briefly introduced it in plain words: "The mechanism of action of this material is the same as that of other reverse osmosis materials, in short, it can filter water molecules and remove other impurities. However, compared with ordinary reverse osmosis membrane materials, our materials have three main advantages: high efficiency, long life, and low cost. ”

The Great Elder nodded, listened carefully to Liu Feng's introduction, and accepted it humbly, just like a primary school student;

Seeing this, Liu Feng felt a little proud in his heart and continued to introduce.

"As the name suggests, high efficiency means that the treatment efficiency of raw water is high, and compared with other reverse osmosis materials, the efficiency of our new materials can generally reach 2~3 times that of them!"

"The long life is because the average life of our materials is generally about 5 years, while the life span of other materials is basically between six months and two years. ”

"Low cost is better understood, the reason why seawater desalination can not be promoted on a large scale before is because of the high cost, and the treatment cost of seawater desalination by our new materials can basically be the same as the ordinary tap water treatment cost in inland areas, and even if the raw water is replaced by seawater to fresh water, the treatment cost can be lower!"

"Moreover, compared with the domestic tap water quality, the water quality after our material treatment can reach the first-class drinking water standard of country M!

Listening to Liu Feng talk about the advantages of new materials, especially when the water quality was better, the Great Elder finally couldn't help but nod and shouted hello.

China's tap water quality standards are indeed too far behind those of country M.

The old man also understands this more or less.

Especially when he heard a story that when he came to China, he never drank the tap water of China, and asked him why, he said that this kind of water quality is also drunk by people?

Although the authenticity is debatable, it may not be empty, and when he happened to see this kind of news, he was more or less embarrassed.

However, after so many years, Huaguo's drinking water standards are far from those of country M, which makes him a little uncomfortable.

After Liu Feng's introduction, the old man applauded and was very happy, and several people accompanying him also applauded.

Affected by this warm atmosphere, Liu Feng became even more excited: "Seeing is believing, hearing is false, elder, next, I will briefly demonstrate to you the magic of this new material." ”

So, tap water, various reagents, pitch-black ink......

With the same treatment as Zhang Qin that day, Liu Feng prepared the raw water and set up the treatment equipment, and then, the pitch-black raw water entered, and the clear and transparent water flowed out......

Before and after, a large basin of water was treated, and it only took 10 minutes.

Moreover, the whole process is transparent, and there is no room for fraud!

Of course, Liu Feng didn't dare to fake, and it was impossible to fake!

Although it is not the first time he has seen this scene, Zhang Qin still watched it with relish.

As the person in charge of the Huaguo Science and Technology Association, it is like the person in charge of the army receiving new equipment; in his mind, this kind of scene is even more attractive than a good-looking TV series, and he can't wait to watch it a few more times!

The Great Elder stood quietly aside, staring intently at Liu Feng's movements from beginning to end.

When the last drop of water dripped from this humble instrument into the basin, the old man involuntarily applauded again, and, this time, more passionately, more durably!

Under the leadership of the old man, everyone once again burst into warm applause.

And what permeated this applause was Liu Feng's smile that had already bloomed, and of course, the envy, admiration and emotion of everyone present......