Manned spaceflight is a round-trip flight activity in which human beings drive and ride manned spacecraft in space to engage in various exploration, research, experiments, production and military applications, with the aim of breaking through the barrier of the earth's atmosphere and overcoming the earth's gravity, expanding the scope of human activities from the earth to space, fully understanding the entire universe, and developing rich space resources.

This is a highly difficult and systematic project that integrates the country's political, military, economic, and scientific and technological strengths, and in order to complete this huge project, it is necessary to break through three major technical problems.

The first is that it is necessary to have high-thrust launch vehicle technology to send very heavy spacecraft into low-earth orbit, the second is the technology for the safe return of satellites, and the third is a good environmental control and life support technology system, each of which is crucial and indispensable.

Everything is difficult at the beginning, the first step in the establishment of the Great Wall is also the most arduous, from the first day of the establishment of this plan, Su Qingyun has been unprecedentedly busy, he can't wait to run when he walks, even when he eats and sleeps, he is thinking, and the state of the researchers of the entire launch center is almost the same, but at the same time, everyone also feels fulfilled and satisfied, because everyone's hearts are all together, they all have the same goals and ideals, and even walking is windy.

In the midst of such busyness, the book turned another page and came to 1981.

Su Qingyun dragged her tired body out of the laboratory, she was already too tired, the rapid wind blew, and she shivered with cold, and the whole person quickly woke up.

She raised her eyes to look at the sky in front of her, stunned, the dark sky, faintly bubbling with red light, extremely low visibility, and accompanied by wind and sand, blowing into her mouth and nose, Su Qingyun was choked and coughed in an instant, and her eyes were so fascinated that she couldn't open them, so she could only lower her head to protect her mouth and nose.

"Researcher Su, why are you still here?" A voice came from the darkness, surprised and anxious, "It's about to be a sandstorm, you hurry back, stay in the house, don't come out!" ”

Su Qingyun couldn't see the face of the person who came, but he could hear from the voice that it was Brother Jiang who was in charge of the security work of the launch center, he turned on the flashlight in his hand, Su Qingyun rubbed his eyes, and after shedding emergency tears, he was finally able to see something clearly.

"I just came out of the lab." Su Qingyun said with difficulty, "How can there be a sandstorm?" How many levels? ”

After staying at the launch center for almost two years, Su Qingyun has not experienced sandstorms, and this is a desert area, sandstorms are not a rare phenomenon, but there has never been a large-scale sandstorm like today.

"The weather monitoring center said that it was estimated to be a sandstorm with a wind speed of nine."

"What?!" Su Qingyun's face changed, and his heart tightened.

The sandstorm with a wind speed of nine is already a strong sandstorm, which is very harmful to life and production, not to mention their vital launch center, sandstorm weather will bring very serious consequences, can destroy many things, and the destructive power is very strong.

Su Qingyun only felt that the wind in front of her was getting stronger and stronger, with a devastating posture, her whole person was almost unstable, and Brother Jiang hurriedly supported her.

"Researcher Su, let's go, go indoors quickly, otherwise we won't be able to leave when the sandstorm comes."

"What about the rest of them?" Su Qingyun asked.

"The other researchers are safe, Zhao didn't see you, let me come to you." Brother Jiang explained.

"That's good." Su Qingyun breathed a sigh of relief, and then suddenly thought of something, and his face changed greatly, "What about those test facilities and equipment?" ”

"What?" Brother Jiang didn't understand.

Su Qingyun didn't have time to elaborate, he just ran away, his heart was very anxious, many of the test facilities and equipment in the launch center were placed in the open air at various points, and those transmission towers, experimental plants, radar antennas and other equipment and facilities, once the sandstorm came, it would be very dangerous, and their previous hard work would be ruined.

She ran in the wind and sand, unable to see the direction clearly, and could only run to the surrounding points with the route in her memory, and the anxiety in her heart made her care about anything else.

"Researcher Su, don't run, it's dangerous!" Brother Jiang was also anxious, and hurriedly chased after him with a flashlight.

When Su Qingyun came to the launch center, the wind and sand were getting bigger and bigger, and the whistling sound was like a ghost crying wolf, which made people panic when they heard it, but she didn't care about anything, only the radar antenna that was about to collapse in her eyes, and she ran over as fast as she could.

"Researcher Su, danger!" Brother Jiang saw her running over and holding on to the radar antenna, and his heart was about to frighten.

"Come and help!" Su Qingyun yelled at him.

Brother Jiang ran over and held the radar antenna with her, but the weight of the antenna and the terrible force of the wind and sand destroyed it made the two unable to support it at all.

"What about the others?" Su Qingyun squeezed the question out of between his teeth.

"At other points." Brother Jiang replied with difficulty.

How could they not have thought of protecting these equipment and facilities, the security of the entire launch center was scattered to various points, but the wind and sand were too big, and their manpower was not enough, Brother Jiang was originally going to send Su Qingyun back safely to help.

Su Qingyun could only grit his teeth and insist, in the yellow sand in the sky, they were like fluttering duckweed, unable to support the bulky radar antenna at all, and they were crumbling when they saw it.

A pair of hands propped it up.

The pressure was reduced, Su Qingyun was stunned, and when she saw the person clearly, she couldn't believe it.

"Zhao Suo, why are you here?"

"You little girl is here, why can't I come?" Zhao pretended to be relaxed, but the movements of his hands were so hard that the green tendons on his forehead jumped up.

"And me!" Another voice she was familiar with.

"I'm here too!" This is Chen Jingru's voice.

"I'm here too!"

“……”

Voices resounded in the wind and sand.

A pair of hands joined in, followed by another pair, another pair......

Knowing that there were not enough security guards and worried about damage to the test equipment, the researchers of the entire launch center came, formed a circle, and stubbornly held the radar antenna, while the others went to check various places to see if there were any missing places to minimize the harm caused by sandstorms.

The wind and sand are even bigger, and the posture of black clouds pressing down on the city, like the devil's city in the story, is daunting, but everyone is motionless and does not move a step.

"Hold on, everyone, this is our hard work!"

"Don't worry, if I fall, it can't fall!"

"Push harder, hold on!"

“……”

These words are cheering for everyone and cheering for themselves.

In the yellow sand in the sky, Su Qingyun was moved to tears, even if she couldn't see the people around her clearly, she knew that at this moment, all of them were standing together.