The total area of the insulation tiles that need to be inspected is more than 20 square meters, and Mai Dong lacks professional testing tools, no ultrasonic flaw detectors and no X-ray machines, and all she can rely on is her own eyes.

"The ablation is severe." Mai Dong stretched out his hand and gently pressed it on the surface of the black belly, "The surface is very rough, it looks a bit like plastic." ”

"This is a phenolic-impregnated carbon ablative material, and its fixative is phenolic, which is a bakelite plastic." "So it's normal to look like plastic, and some car tires are also made of this material." ”

The Eagle lander was subjected to friction and burn during its first entry into the atmosphere, and the heat of 2,000 degrees Celsius caused the insulation tiles to evaporate and sublimate, making its ventral surface look far less complete and clean than it had been when it left the factory, like a severely burned patient with not an inch of intact skin on its body.

If it weren't for Yang's garbled code of his girlfriend, brother, mentor, and nephew who was in charge of NASA, the seventh uncle and grandfather said that there was no problem, Tang Yue didn't have the bottom in his heart, and the heat insulation tile after high temperature cautery looked quite miserable, the surface was uneven, burnt, and a little rough to the touch, and the large area had melted into a glass body, glowing with colorful oil.

But fortunately, whether the Eagle lander can work or not depends not on appearances.

No matter what it burns into, as long as it was designed with enough redundancy, it will be able to withstand another re-entry.

The super arm moved slowly with Mai Dong, and through the glass mask, the girl carefully checked the heat insulation tile of the lander.

"The parts that look badly burned don't matter, it's normal." The old cat reminded, "The heat insulation tiles on the Eagle spacecraft themselves are taken away by combustion sublimation, Miss Mai Dong, you should pay attention to the deeper cracks and uneven areas. ”

"Cracks and bumpy areas?"

"Yes, cracks in extreme environments have the potential to cause stress concentrations, causing crack expansion and falling off of insulation tiles." The old cat stared at the picture and nodded, "The unevenness will cause uneven heating and cracking of the insulation tile, which may cause accidents." ”

"I see."

Mai Dong gasped softly and turned on the LED headlights on both sides of his helmet.

"What should I do if there is a crack?" Tang Yue lowered his voice and asked, "Do you want to make it up?" ”

"What to make?" The old cat asked, "Do you have 502 glue?" ”

"Nope." Tang Yue asked, "Can 502 glue be used to repair this?" ”

"Obviously not." The old cat shook his head, "But you don't even have a bottle of 502 glue." ”

"This ...... What should I do? ”

"There's no way." "So you'd better pray that there won't be any fatal cracks." ”

Tang Yue was speechless, I don't know when he has been used to the days when there will always be a backup plan, PlanA is not good and PlanB, PlanB is not good and PlanC, there is still a DEFG queue behind PlanC, they just need to say hello to the ground, and the engineers on the ground will gather a lot of solutions for you to choose within twenty minutes.

At that time, I really didn't know the blessing in the blessing, but now I think about it, it was a good day for a huge group of nurses with thousands of top supports, I didn't know how to cherish it at the time, and now I regret it.

The so-called endless road is just someone who helps you pave the road.

The old cat said that there is no way, that is, there is really no way, there is no hope at all, let you hit your head and bleed, these four words are as simple as cold as this.

"No cracks were found." Mai Dong's voice sounded in the channel, "The heat insulation tile is tightly pasted, but I see a position protruding......"

Mai Dong moved the camera to let the old cat and Tang Yue see clearly.

The girl gently pressed the protrusion with her hand, and on the flat belly it was a noticeable bulge, like a wart on the skin, "This should be the material that has been heated and expanded, Mr. Cat, does this matter?" ”

The old cat stared at the screen for a moment.

"It's a safety hazard, and it's best to rule it out."

"How to rule it out?" Tang Yue asked.

"The way of heaven is to make up for the deficiency if there is more than it loses, make up for it if it is less, and cut it off if it is more." The old cat replied, "Of course, the elimination method is to get rid of the excess parts, Miss Mai Dong, the inspection work is over for the time being, you go back to the space station to rest first, and then come back to solve the problem next time you go out of the capsule, just like dealing with acne." ”

"So violent?" Mai Dong was stunned, the girl has a deep hatred for acne.

"Yes, that's it." The old cat said,

"So what do I do to fix it?" Mai Dong asked, "Softened with high temperature?" Or do you want to find a way to remove it and reinstall it? But there aren't many tools in the space station......"

Mai Dong thinks that repairing the insulation tile must be a complex and delicate job, and may require a huge set of machine tools, but the space station obviously does not have this condition.

"What tools should I bring?"

"A file."

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"Tang Yue, I'll take these dirty clothes and wash them." The old cat hugged a large stack of clothes, "There's nothing in your pocket, is there?" If there is something unsightly to look at, quickly take it out. ”

"Nope." Tang Yue bent down and got into the Mingguang armor and put his hand into the spacesuit, "Take it and wash it." ”

"A smell of heather." The old cat picked up a pair of dirty underwear and frowned, "I told you a long time ago, don't always secretly hide in the bed and watch Lao Zheng's educational films......"

"Get out!"

Whether it is the Kunlun station or the space station, washing clothes is a very troublesome problem, fresh water is a very valuable resource, can not be wasted on such an inconsequential thing as washing clothes, according to the previous practice on the ISS, clothes do not need to be cleaned, wear dirty clothes to change to new, dirty clothes directly stuffed into the cargo spacecraft, thrown into the atmosphere to burn.

In the early days of the Mars mission, this pattern was basically continued, there was no washing machine in the United Space Station, everyone would carry enough disposable clothes to change clothes, encapsulated in bags, all of which were made of soft, deodorant and antibacterial materials, underwear was changed every six days, and coats were changed once a month, and they were thrown into garbage bags when they reached the deadline.

But as the Mars landing mission continues to lengthen, the astronauts need to carry more and more changes of clothes, and a team of six people has to change out of 400 dirty clothes in a year, which is a rather frightening number, and the Orion spacecraft has to make room for clothes.

So later they installed a small washing machine in Kunlun Station.

It's small, not much bigger than a microwave.

Tang Yue didn't know what the working principle was, he didn't need laundry detergent, maybe he used high-temperature water vapor for sterilization and disinfection, but the recycling efficiency of wastewater was not high, so washing clothes was quite a luxury for him - Tang Yue accumulated a lot of dirty clothes every time, and washed them for the last time.

Tang Yue accurately mastered the frequency of washing clothes to achieve the purpose of saving fresh water, this set of operations he is familiar with, after all, this is a necessary skill for every boy with a college education.

How to take as few baths as possible for as long as possible and keep the body as free of fermentation as possible.

"Be careful, I'll just have a few pairs of panties." Tang Yue was very dissatisfied with the old cat's rough movements, "If it is broken, it will be replaced." ”

"Got it, got it, rest assured." The old cat had a helmet on its head and tried to pinch Tang Yue's underwear far away with a long pair of pliers, but its left arm was very unpolished, and it couldn't be clamped up when poked back and forth.

"Then I'll go out and move the panels."

“Good luck.” Old still poking panties on the floor.

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An hour and a half later.

"Tang Yue, don't be angry first, listen to my explanation, listen to my explanation, this hole is intentional on my part, really, really...... This hole is for ventilation and allows the balls to breathe in fresh air......"