Seeing Liu Feng and Professor Wu Qingquan greeting him, Zhang Qin nodded, turned around and introduced to the great elder, "Elder, this is Professor Wu Qingquan from Shuimu, this is Professor Liu Feng and Liu."

His eyes glanced at the two scientists for a while. When he saw Liu Feng dressing as if he was really young, the elder was shocked inexplicably. He nodded, calmed his face slightly, and took the initiative to step forward and grabbed Mr. Wu's hand: "Professor Wu, thank you for your hard work."

"Where are you, elder, thank you for your hard work."

Mr. Wu said politely.

His eyes fell on Liu Feng again. The old man paused for a moment, his expression slightly calmed, changed into a solemn expression, and stretched out his right hand and said.

"This is Comrade Liu Feng! Professor Liu has long been honored by his name."

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

"Elder! Hello! I am Liu Feng..."

For a moment, he was so excited that he couldn't say the following words. He forgot the lines and his face flushed.

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

"My little comrade, don't be nervous. Are I even more terrifying than the monsters and monsters in Journey to the West? Haha!"

The old man laughed.

"Ha ha!"

The people around also laughed.

The laughter diluted the tension.

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

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

...

The laboratory has been cleaned up neatly, and even some volatile and odor-heavy chemical reagents have been removed.

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

"This is the reagent table, which mainly contains some ordinary chemical reagents; this is a fume hood, which is used to perform some experiments that require ventilation; this is the reagent cabinet..."

Liu Feng briefly introduced the mercy of the laboratory.

The old man's eyes followed Liu Feng's guidance and nodded while nodding, shook hands with several experimenters sitting upright, and said, "Thank you for your hard work."

The experimenters who were cared for by the elderly were naturally flattered and extremely excited.

The layout of the laboratory has been briefly introduced, and next is today's highlight.

Next to an empty laboratory bench, several rows of bottles and jars and some equipment that I can't understand were already neatly arranged. Next to these things, a black film-like object was lying quietly on the laboratory bench.

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 material!"

"Oh, is that?"

The old man's expression became serious in an instant, and his eyes were staring at the black film on the table. Although he had seen the effects of this new material on the information submitted by Zhang Qin, it was one thing, and it was another thing to contact it in person. For this new material, he had been "communicating for a long time".

After a while, the old man sighed:

"So it's this thing! Professor Liu, can you introduce it to me?"

"Okay, elder!"

Liu Feng was prepared.

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

After all, he couldn't even accept such an opportunity to show off with a smile, so how could he give it to others!

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

The elder nodded, listened carefully to Liu Feng's introduction, and accepted humbly, like a primary school student; the people around him did not dare to act rashly, and listened quietly to Liu Feng's introduction.

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

"As the name suggests, high efficiency means high treatment efficiency for raw water. Compared with other reverse osmosis materials, the efficiency of our new materials can generally reach 2 to 3 times their efficiency!"

"The long life is because our materials usually have an average life span of about 5 years, while other materials have a life span of between half a year and two years."

"It is better to understand low cost. The reason why seawater desalination could not be promoted on a large scale before was because of the high cost. The treatment cost of seawater desalination by our new materials can basically be consistent with the ordinary tap water treatment cost in inland areas. Even if the raw water is replaced from seawater to fresh water, the treatment cost can be even lower!"

"And, compared with the domestic tap water quality, the water quality after our materials can meet the first-class drinking water standards in Country M! The water quality is better!"

Listening to Liu Feng talking about the advantages of new materials, especially when the water quality is better, the Great Elder finally couldn't help but nodded and shouted OK.

The tap water quality standards of China's country are indeed too far apart from those of Country M.

The elderly also know more or less about this.

Especially when he heard a story that when M Guo came to China, he never drank the tap water from China. When he asked him why, he said that this kind of water was also drunk by people?

Although the authenticity is somewhat debatable, the ground may not necessarily lead to the wind. When he accidentally saw this kind of news, he was more or less ashamed.

However, so many years have passed, and the drinking water standards in China are far from those in Country M. This makes him feel a little uncomfortable. This time, Liu Feng has given him a face.

After Liu Feng finished introducing the article, the old man clapped and was very happy; the few accompanying people also clapped; for a moment, there was applause in the laboratory.

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

So, tap water, various reagents, dark ink...

With the same treatment as Zhang Qin that day, Liu Feng prepared the raw water and built the treatment equipment; then the dark raw water entered and the clear and transparent water flowed out...

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

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

Of course, Liu Feng dared not to commit fraud, and it was impossible to commit fraud!

Although this is not the first time Zhang Qin has seen this scene, he still enjoys watching it.

As the head of the China Science and Technology Association, it is like the head of the army receiving new equipment; in his mind, this kind of scene is even more attractive than a good-looking TV series, and I wish I could watch it a few more times!

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

When the last drop of clear water dripped into the basin from this simple instrument, the old man couldn't help but clap the applause again, and this time, it was more enthusiastic and more lasting!

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

What filled the applause was Liu Feng's smile that had already bloomed. Of course, there was also the envy, admiration and emotion of everyone present...
Chapter completed!