When Lin Yu returned home, Luo Bing was already busy in the kitchen.

"Bing'er", Lin Yu didn't know how to speak, but he went into the kitchen and wrapped his arms around Luo Bing's waist, "I'm going to a far, far away place." ”

"What's wrong?" Luo Bing frowned, and the work in his hands did not stop.

"People from the Huaxia Academy of Sciences have come to me for research."

"That's a good thing."

"But if we have to study in a closed space for three years, we won't be able to see each other for three years."

Luo Bing's movements paused slightly, "Is it that kind of confidential scientific research plan?" ”

"Yes."

"Brother Yu, I support your idea, you can go if you want, don't care about me."

"There's a certain amount of time each week to contact you, though."

"Isn't that great?"

"If I'm leaving, do you want me?" Lin Yu's face was close to Luo Bing's back, and through his clothes, he couldn't understand Luo Bing's heartbeat.

"No, it won't." Luo Bing said with a smile.

"Is it so ruthless?"

"Because I'm cold, I'm ruthless."

"Well, you are cold, you are ruthless, but you can warm my heart." Lin Yu's mouth was close to Luo Bing's ear, and his voice was suppressed, and the breath he exhaled made the fluff around Luo Bing's ear tremble slightly.

Luo Bing's face turned red at a speed visible to the naked eye.

She couldn't stand it anymore, why hadn't she seen her for a while, and his sultry work had grown a lot?

"Bing'er, can I kiss you?"

In order to alleviate this ambiguous atmosphere, Luo Bing told an inopportune joke, "Why kiss my mother?" ”

"Haha", Lin Yu saw that the atmosphere he had finally created was broken, so he could only laugh dryly.

Luo Bing smiled slyly, turned his head and kissed Lin Yu.

The natural gas stove in the kitchen made a "Sisi" sound, the blue flame burned the black pot, and the boiling water "gurgled and gurgled" and steamed, and the water vapor was like a cloud, swirling around the two embracing peaks.

His lips and teeth lingered on hers, and their hearts were hooked into infinite water through the tip of their tongues.

I don't know how long it took, Lin Yu and Luo Bing gradually came back to their senses, and the warm touch made the two inseparable.

"Cough", Lin Yu coughed a little embarrassedly.

Luo Bing, whose face was seductive, looked at the embarrassed Lin Yu and laughed.

"Wash your hands and help me cook."

Hearing this, Lin Yu hurriedly washed his hands and prepared to help Luo Bing choose vegetables.

One person chooses vegetables, one person cooks, the smoke in the kitchen of each family infects the whole world, and the happy stove fire converges into a call to eat at this time.

Isn't the purpose of his scientific research, the purpose of thousands of scientific research workers, precisely for this most ordinary life?

With life, there is pursuit.

At night, Lin Yu came to the research institute of the system, and he wanted to make a new generation of aerospace urine collection device.

The space program is designed to take a stronger position in the struggle for space rights.

Many people don't know that space not only means the dream of mankind from ancient times to the present, but also means security.

After going into space, in order to deal with the threats of the cosmic age, the space station is necessary.

And the space station can carry weapons, such as various weapons in the "Three-Body Problem" book.

If the space above one's own house is someone else's space station, then someone else secretly develops weapons and secretly carries weapons on them, then this space station is a sword of Damocles hanging over the head of the country, and one's own life and death are in the hands of others at any time.

Of course, this is just a very conspiracy theory.

To get back to the point, the space urine collection device is mainly used in two confined and narrow environments of extravehicular spacesuits and in-cabin spacesuits, and the exterior is restrained by multiple layers of clothing.

Moreover, underwear (especially liquid-cooled suits should be worn when going out of the capsule) and spacesuits outside the space urine collection device, which have poor air permeability and are easy to breed bacteria, so the hygiene requirements for the raw materials of the space urine collection device are relatively high. Astronauts live in a confined environment and need to control the amount of escaped gaseous pollutants, so the raw materials used in the space urine collection device also need to meet the requirements for controlling the escape of gaseous pollutants.

In 12 years, in order to meet the physiological differences between men and women, the Astronaut Center and related units specially developed special devices for women.

Moreover, the spacesuit needs to be worn for more than 8 hours at work, and the working time is longer when leaving the cabin, which requires the space urine collection device to be in contact with the human body The material is less irritating to the skin, and has the function of antibacterial, deodorization and the ability to absorb urine quickly and efficiently, and has a low amount of repenetration, so as to keep the skin dry.

And because it is weightless in space, as well as overweight in liftoff and return, it also needs stronger absorption performance, faster absorption speed, and lower infiltration volume.

In addition, due to the small space in the cabin, there are also strong requirements for excretion packaging and volume quality, which should be tight, small in volume, light in weight and more comfortable.

Therefore, Lin Yu also needs to take into account the above problems when developing.

At present, the top material is mainly spunbond, SMS or hot air bonded nonwovens. Moreover, high absorption and low repermeability are a pair of contradictory aspects, and if it is necessary to take both into account, it is necessary to develop surface materials with special structures on the basis of these materials.

Huaxia's current aerospace urine collection device still adopts the core structure of traditional wood pulp and polymer resin, because although this core structure is thicker, it has better air permeability and low reverse osmosis after liquid absorption.

All of these problems can be solved by the system-rewarded [new generation space urine collection device].

There is also no need to change much, because the material is also an issue, so the design given by the system only changes the way the composite core of this device is combined.

Although it has not changed much, its applicability and comfort have been greatly improved.

Therefore, the biggest problem for Lin Yu to enter the system research institute is not the experiment, but the production, no one told him how to make something like diapers!

Yes, the main body of the space urine collection device is actually diapers, and I am afraid that aerospace enthusiasts probably don't know about this at all.

Many people think that this is an inconsequential thing, but it is important because humans are heterotrophs and need to eat and excrete, and if the excrement is not released in time, a vicious circle will be formed in the body, causing diseases in the body.

For example, urethral stones...... And in the study of biology, when water is transmitted through the kidneys to the renal tubules and becomes urine, if it cannot be excreted in time, the urine will be absorbed in the bladder for a second time, of course, most of it is water, and a small part of the garbage will also re-enter the body's water circulation, most of this water will enter the blood, think about the urine flowing in the blood vessels...... What a terrible thing it is.

In addition, low absorption and high recirculation mean that astronauts need to return to the capsule many times to replace the core, which will waste a certain amount of time, you must know that space is weightless, and it is more difficult for them to return than on the earth, don't watch all kinds of TV series so easy, if it is really so easy, why do astronauts need to be carefully selected, instead of going up alone?