"北京""东风""华山"……神舟发射时，数万航天人通过这些神秘呼号紧密相连，实现"千人一枚箭，万 人一杆枪"的完美协作！联播一瞬带你破译中国航天"暗语"。 来源：央视新闻客户端 监制丨彭娜 黄显文 剪辑丨李超越 记者丨王晓丹 制片人丨张英 编导丨焦健 李伟 卢子月 王曦 林俐 ...

Core Points - The Shenzhou-21 manned flight mission press conference was held at the Jiuquan Satellite Launch Center on October 30, 2023, announcing the collaboration between China and Pakistan in astronaut selection [1] - The selection process for Pakistani astronauts consists of three stages: preliminary selection in Pakistan, followed by re-selection and final selection in China [1] - Currently, the preliminary selection is underway in Pakistan, while preparations for the re-selection phase, including training programs and living arrangements, are being conducted in China [1] - After the final selection, two Pakistani astronauts will train alongside Chinese astronauts, with plans for one Pakistani astronaut to participate in a short-term flight mission as a payload specialist [1] - The mission aims to promote international cooperation in space exploration and enhance the development of space technology for the benefit of humanity [1]

Core Viewpoint - The article highlights the collaborative efforts of thousands of aerospace personnel in China during the Shenzhou launch, emphasizing the importance of teamwork and communication through unique call signs [1] Group 1 - The use of mysterious call signs such as "Beijing," "Dongfeng," and "Huashan" signifies the close connection among aerospace personnel during the Shenzhou launch [1] - The phrase "one arrow for a thousand people, one gun for ten thousand people" illustrates the perfect coordination achieved by the team [1]

Core Points - The Shenzhou-21 manned spaceflight mission press conference was held at the Jiuquan Satellite Launch Center on October 30 [1] - The astronaut crew for the Shenzhou-21 mission consists of Zhang Lu, Wu Fei, and Zhang Hongzhang, with Zhang Lu serving as the commander [1] Group 1 - The three astronauts have distinct roles: Zhang Lu as the pilot, Wu Fei as the flight engineer, and Zhang Hongzhang as the payload specialist, representing the three types of active astronauts in China [2] - Zhang Lu has previously participated in the Shenzhou-15 mission, while Wu Fei and Zhang Hongzhang are both from China's third batch of astronauts and are on their first flight mission [2] - Prior to selection, Wu Fei was an engineer at the China Aerospace Science and Technology Corporation's Space Technology Research Institute, and Zhang Hongzhang was a researcher at the Dalian Institute of Chemical Physics, Chinese Academy of Sciences [2]

Core Viewpoint - The article highlights the significant developments and historical milestones of the Dongfeng Space City over the past 20 years, emphasizing its role in China's manned space program and the evolution of the infrastructure and community surrounding it [1][3][11]. Infrastructure Development - The road leading to the launch site has transformed from a single-lane dirt road to a dual four-lane asphalt road, reflecting the growth in accessibility and infrastructure [3][7]. - The area has seen an increase in buildings and facilities, indicating a substantial development in the community surrounding the space center [7][9]. Historical Context - Dongfeng Space City, established in 1958, has been a home for countless aerospace professionals and has witnessed the evolution of China's space missions, starting from the Shenzhou 6 mission in 2005 [1][9][11]. - The article notes that since the first Chinese astronaut entered space in 2003, the frequency of manned missions has increased significantly, showcasing the advancements in China's space capabilities [11][12]. Community and Culture - The local community has adapted to the presence of the space program, with residents expressing pride and a sense of belonging to the ongoing space endeavors [7][9]. - The article draws a parallel between the resilience of the local Hu Yang trees and the dedication of the aerospace professionals, highlighting a shared commitment to growth and excellence in their respective fields [14][18]. Technological Advancements - The maturity and reliability of the Long March 2F rocket have improved significantly over the past two decades, reflecting advancements in technology and human capacity within the aerospace sector [12][16]. - The ongoing development of the Chinese space station and the frequency of launches demonstrate the increasing complexity and ambition of China's space missions [16][18].

Core Points - The Shenzhou-21 manned spacecraft launch mission has completed a comprehensive rehearsal, indicating readiness for the upcoming launch [1][3] - The rehearsal involved a full system and process verification, confirming the reliability of the rocket, spacecraft, launch site, and communication systems [3][6] - Preparations for potential weather challenges, such as low temperatures and seasonal winds, have been implemented to ensure optimal launch conditions [8] Group 1 - The Shenzhou-21 spacecraft and Long March 2F Yao-21 rocket have undergone functional and technical state verification during the rehearsal [3][6] - The rehearsal simulated various technical states and processes for launch preparation and flight, ensuring all systems are synchronized [5][6] - The launch is now in the countdown phase following the successful completion of the rehearsal [3] Group 2 - The launch site has established targeted measures for weather conditions, including insulation and air conditioning to maintain propellant temperatures [8] - The Chinese space station is preparing for docking maneuvers, with the Shenzhou-20 crew having conducted manual docking practice in anticipation of the Shenzhou-21 arrival [10]

Core Points - The Shenzhou-21 manned spacecraft is scheduled for launch soon after successful transfer to the launch area [1] - The Shenzhou-20 crew has been in orbit for over 180 days, conducting various experiments and preparing for their return [1] Group 1: Space Missions - The Shenzhou-21 spacecraft was successfully transported to the launch area for an upcoming launch [1] - The Shenzhou-20 crew is actively engaged in multiple experiments and maintenance tasks while preparing for their return [1][4] Group 2: Scientific Experiments - In the field of space medicine, astronauts conducted tests on trust and collaboration mechanisms, fine motor control, and emergency decision-making capabilities [3] - The crew is studying the effects of different loads on foot pressure and joint movement during exercise in microgravity [3] - In microgravity physics, experiments on inertial particle dynamics are ongoing, revealing the influence of particle inertia and flow field fluctuations on relative motion [3] Group 3: Health Management - The Shenzhou-20 crew performed routine maintenance on onboard equipment and conducted various medical checks, including eye pressure and non-invasive heart function tests [6] - The crew is utilizing devices to counteract physiological effects of weightlessness, ensuring health maintenance during their extended mission [6]

Group 1 - The Shenzhou 21 spacecraft and rocket combination has been transported to the launch area, indicating a significant step in China's space exploration efforts [1] - The event is highlighted by the picturesque autumn scenery of the Gobi Desert, showcasing the natural beauty surrounding the launch site [1] - A video is available that captures the transportation process, providing a visual representation of the preparations for the upcoming mission [3]

Core Points - The Shenzhou-21 manned spacecraft has been successfully transported to the launch area for an upcoming launch with the Long March 2F Yao-21 rocket [1][3] - The launch is part of China's ongoing efforts to enhance its space capabilities, with Shenzhou-21 being the tenth manned spacecraft to support the space station [5] Group 1 - The Shenzhou-21 spacecraft and Long March 2F Yao-21 rocket were moved from the assembly testing facility to the launch site, covering a distance of 1.5 kilometers on seamless steel tracks [1] - The launch team has conducted extensive preparations, including addressing potential issues with the launch platform and ensuring the successful completion of the mission [3] - The Long March 2F rocket has undergone 16 technical improvements, notably an upgrade to the optical navigation system and enhanced redundancy in the inertial measurement unit, significantly increasing flight reliability [5] Group 2 - Following the successful transport, the team will perform functional checks on both the spacecraft and rocket, conduct full-system launch drills, and ensure compatibility and coordination among various systems [6] - The launch preparations are aimed at achieving a "perfect" launch, with all systems reported to be in excellent condition prior to the final steps of fueling and ignition [5][6]

Core Viewpoint - The Shenzhou-21 manned spacecraft has been successfully transported to the launch area, with plans for imminent launch following extensive preparations and technical upgrades to ensure mission success [1][9]. Group 1: Launch Preparation - The Shenzhou-21 spacecraft and Long March 2F Yao-21 rocket were moved from the assembly testing facility to the launch site, covering a distance of 1.5 kilometers on seamless steel tracks [1]. - Various staff from research and testing units actively supported the transport of the spacecraft and rocket combination [5]. Group 2: Technical Improvements - The Long March 2F rocket has undergone 16 technical improvements, with a significant upgrade to the optical navigation system and enhanced redundancy in the inertial measurement combination, greatly improving flight reliability [7]. - Preparations at the launch site included extensive checks and drills to ensure the functionality and compatibility of all systems involved in the launch [11]. Group 3: Mission Objectives - Shenzhou-21 is the tenth manned spacecraft since the completion of the space station, aiming for a "perfect" launch outcome [9]. - The launch center has completed technical work on the rocket and spacecraft, with all systems reported to be in good condition prior to the vertical transport to the launch area [11].