"Mr. Cat? Mr. Cat, Mr. Cat, is Mr. Cat you? I can hear! I heard it, I heard it! Mai Dong's tone burst out with great surprise, as if he had grasped a life-saving straw, "Mr. Cat, are you okay?" What about Mr. Tang Yue? ”

"Everything is normal at Kunlun Station." The old cat replied, "Tang Yue is also safe and sound." ”

"Scared the hell out of me...... It really scared me to death, you suddenly lost contact, no response to your calls, what happened down there? ”

"Sandstorm." "The weather interfered with communications, but fortunately there was no damage and we have solved the problem." ”

Mai Dong breathed a sigh of relief.

"Miss Mai Dong, how is your situation over there?" The old cat asked, "How many survival supplies do you have in your hands?" How many days is enough? ”

"The last compressed cookie had been eaten by me fifteen minutes ago, and I would have liked to save it for tomorrow, but ...... I'm so hungry that I can't sleep, and there's nothing left on the station to eat. The girl whispered, as if she had done something wrong, "I...... I also tried nibbling on the insulated liner in the living pod...... Later, I found out that I couldn't bite it at all......"

Mai Dong's voice became smaller and smaller, and the old cat couldn't cry or laugh.

Dare to love this girl is a foodie, and she is so hungry that she even gnaws on the space station.

Tang Yue leaned back against the hatch of the airlock chamber, sitting on the ground, he turned the brightness of the Mingguang armor headlamp to the maximum, but it still could only illuminate the range of one meter in front of him, Tang Yue felt like he was at the bottom of the dark sea, the only thing on the earth that can be similar to the current environment is the deep sea, as long as the depth exceeds two hundred meters, all the light will be absorbed by the seawater, and then the five fingers can not be seen.

Tang Yue thought to himself that if there was a diver on earth sitting on the bottom of the Pacific Ocean, with more than 1,000 meters of pitch-black water above his head, then the situation would be similar to his...... All the same danger, the same darkness, the same isolation.

But how could anyone sit at such a deep seabed? Humans have the ability to land on Mars, but so far no one has been able to dive to the bottom of the ocean alone, and hundreds of millions of tons of seawater will crush any living thing into a meatloaf...... Except for SpongeBob SquarePants.

Tang Yue was stunned.

He wondered if SpongeBob SquarePants sat at the bottom of the sea, looking up at the surface of the ocean in solitude, would he be waiting for someone.

"Tang Yue!" The old cat's call came from the headset, "Adjust the antenna, and fine-tune the signal reception direction to the east!" ”

Tang Yue struggled to get up, he was really a man who did rough work, and he was full of tears when he said it, the old cat sat in Kunlun Station and chatted with the little girl, while he stood outside with Mingguang armor blowing the wind, thinking about SpongeBob SquarePants while blowing the wind. I think he was like this when he was a child when he watched TV in his hometown, and it was always someone else who stayed in the room staring at the TV, and he always came out to turn penny.

The communication antenna stood at his feet, the green indicator light flashed regularly one by one, Tang Yue gently turned the tripod and adjusted the direction of the antenna slightly.

"How? Clear? ”

"Turn about two degrees further east...... Wait, fine-tune back, slower a little more, you're overturning! ”

"Standing and talking doesn't hurt your back! Try to perform millimeter-level operations in a sandstorm of thirty or forty meters per second! Tang Yue fought back unceremoniously, "It's not easy for me to hold this thing steady!" I don't even support the wall, just support this thing! ”

"One and a half times! The circumferential angle only needs to be adjusted by one and a half degrees...... "The old cat, as the commander, obviously will not pay attention to Tang Yue's complaints, its purpose is to keep the communication unimpeded, and to make demands based on this, not to mention thirty-four meters per second, even if it is a wind speed of three or four hundred meters per second, it should be one millimeter is one millimeter.

"What the hell is one and a half degrees?" Tang Yue was very frustrated, this old cat became less and less human.

"One and a half degrees is one and a half degrees, and half a degree is thirty arc minutes!"

"I know it's thirty dimes! But I have to tell you that my hands are not goniometers! I can't give you exactly the right points! Tang Yue shouted.

"And how accurate can you be?"

"I can be accurate to the point of 'probably,' 'almost,' and 'looks like.'" Tang Yue replied.

"Then you turn the antenna to the east, about the same angle that looks like 32 minutes and 15 seconds!"

Tang Yue: ......

The Joint Space Station is flying at a speed of 3.5 kilometers per second in low-Earth orbit, and its position changes all the time, so the antenna direction must also change. Tang Yue is a human motor and an orientation instrument, and he has to adjust the direction of the antenna every once in a while to avoid the signal being interfered with and attenuated in a sandstorm.

The old cat is explaining to Mai Dong all the precautions for tomorrow's launch, it must hurry, the current communication is only barely maintained, it is very unstable, and it does not know when it will be interrupted.

"Listen, Miss Mai Dong, at the end of the rendezvous between the Eagle spacecraft and the United Space Station, that is, the last 100 meters of the approaching section, the docking structure of the Eagle spacecraft and the space station will be accurately positioned and the relative pose will be evaluated, this process is fully automated, but it is especially important, because it directly determines whether the docking can be successful, and the space station uses the circle fitting method for precise positioning......"

"Uh-huh, uh-huh."

"The CRDS will capture the characteristics of the target vehicle at the rendezvous, and there is a target marker on the Eagle spacecraft, which is six LED lights, and it will emit light autonomously when approaching the space station, but you should pay attention to the fact that the autonomously emitting marker is susceptible to the influence and interference of ambient stray light, especially strong sunlight, so pay attention to avoid direct sunlight."

"Uh-huh, uh-huh."

"The docking interface of the Eagle spacecraft is on the back of the fuselage, it is a kind of allogeneic isomorphic peripheral docking mechanism, that is to say, the docking interface of the Eagle spacecraft is the same as the space station, except that one is positive and one is negative, and the docking lock of the two is an anti-reverse transmission design, only after the computer issues the locking instruction, the docking mechanism will be locked, and you must ensure that the locking and air tightness are not problematic after the docking is successful......"

"Uh-huh, uh-huh."

"The whole rendezvous process, from long-distance guidance, close-range guidance, to approaching, approaching and docking stage, all have to be completed by the space station itself, originally in the long-distance guidance stage, we can provide guidance on the surface, but now it is impossible to see the weather, the microwave radar on the space station was originally used for close-range guidance, but now you have to let it guide the whole process......"

"Uh-huh, uh-huh."

The old cat spoke quickly, and he told Mai Dong everything he could think of.

"During the rendezvous and docking, the two-way link between the Eagle spacecraft and the space station must be kept open."

"Uh-huh, uh-huh."

"The Eagle spacecraft receives feedback from the space station and will start the rocket engine according to the distance, gradually decelerate, and finally dock at a speed of up to five meters per second."

"Uh-huh, uh-huh."

The old cat was silent for a few seconds, "Miss Mai Dong, you have been there the whole time, do you understand what I said?" ”

The girl looked innocent and dazed.

"I don't understand it at all."

The old cat holds his forehead.

"Then why are you all the time?"

"That'...... So what do I have to say? ”

The old cat snorted and covered his chest, he felt that he had suffered internal injuries and that his motor had suffered a myocardial infarction.