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The construction of China’s space station is about to usher in another critical process. The Shenzhou 14 spacecraft is expected to launch soon. It will transport three astronauts to the space station again and will live in space for half a year. According to CCTV, the height of the Shenzhou spacecraft is 9 meters, its take-off weight is more than 8 tons, and the largest diameter is 2.8 meters. Shenzhou 14 continued the three-cabin configuration of the previous Shenzhou spacecraft, that is, it consists of three sections: orbital module, return module and propulsion module. The top part is called the orbital module, which is also the living area of ​​astronauts. On-orbit support equipment, including sensors for rendezvous and docking, are housed in the orbital module. It is also where the astronauts live when the spacecraft is operating alone. The main function of the dolly is that it is equipped with many sensors for rendezvous and docking, which is responsible for rendezvous and docking with the space station, and also provides an environment for astronauts to live and work in orbit during independent flight. The module in the middle of the spacecraft is the return module. It is the only module that will return to the ground, and it is also the control center of the entire spacecraft. The control computer of the spacecraft and various communication equipment are mainly concentrated in the return cabin, where the astronauts ride to and from heaven and earth. Inside the cabin are some core control components, including attitude measurement, return .
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