专题18 神舟17号载人航天飞行任务成功发射-2024届高中英语时文阅读外

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2024年4月26日发(作者：)

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专题18

神舟17号载人航天飞行任务成功发射

【原文·外刊阅读】

Shenzhou-17 crewed spaceflight mission successfully launched

（文章来源：Global Times）

On the momentous occasion of the 20th anniversary of China's first manned spaceflight the Shenzhou-5, the

Shenzhou-17 spacecraft soared into the sky from the Jiuquan Satellite Launch Center in Northwest China on

Thursday morning at 11:14 am.

Sitting atop the Long March-2F Y17 carrier rocket, the spacecraft, carrying taikonauts Tang Hongbo, Tang

Shengjie, and Jiang Xinlin, embarked on the journey toward the China Space Station. Following a smooth flight of

around 10 minutes , the Shenzhou-17 spacecraft entered its planned orbit, marking a successful launch, according

to the official release by the China Manned Space Agency (CMSA.)

The average age of the crew of taikonauts of Shenzhou-17 mission is a markedly young at 39, setting a record

for China's manned space history.

The Shenzhou-17 spacecraft is now on its way to the China Space Station, and according to the mission plan,

it will carry out a fast rendezvous and docking with the Tianhe space station core module at the front port around

6.5 hours after liftoff.

The Tiangong space station is hours away from staging another a great feat of an in-orbit reunion of six

taikonauts, continuing the new norm for the China Space Station with permanent occupation of taikonauts, mission

insiders hailed.

The collaboration between the two crew groups will mark a significant step in China's ongoing space

exploration endeavors, reinforcing its capability and commitment to long-term space habitation and research, they

noted.

This year marks the 20th anniversary of China's first manned spaceflight mission the Shenzhou-5. In the past

20 years, China has carried out 12 such crewed missions including the latest Shenzhou-17 mission, with a perfect

success rate.

Since its inaugural flight in 1999, the Long March 2F rocket, the country's first and only manned carrier rocket,

has maintained a flawless record.

Through continuous efforts to address weak links and optimize technical conditions, the reliability assessment

of Long March 2F rocket has now increased to 0.9896, with a safety assessment value reaching 0.99996. This

showcases the rigorous enhancements and technical advancements that have been implemented to ensure the

rocket's reliability and safety over the years, the rocket developer the state-owned China Academy of Launch

Vehicle Technology (CALT) told the Global Times on Thursday.

Currently, the "one-launch-one-standby" launch process of the Long March 2F rocket has been compressed

from 49 days during the initial construction phase of the space station to 35 days. Now, efforts are underway to

further optimize and improve the process aiming for a 30-day target, to better meet the demands of the space

station's application and development phase, developers said.

According to them, in the coming years, the Long March 2F rocket is set to continue its high-frequency launch

schedule with two launches per year. It will play a crucial role in the operation of China's space station,

demonstrating its pivotal role in supporting the country's ambitious space exploration and operation endeavors.

The Shenzhou-17 crewed flight mission, the 30th flight mission since the establishment of China's manned

space program in 1992, has some crucial objectives.

The mission's primary goal includes completing the in-orbit crew rotation with the Shenzhou-16 trio, before

they carry on to conduct an approximate six-month stay in space until April 2024.

During this period, the crew will engage in on-orbit trials of space science and application payloads, conduct

extravehicular activities, commonly known as spacewalks, and perform payload extravehicular operations, which

according to the CMSA, will also involve the installation of extravehicular payloads and maintenance tasks on the

space station.

Moreover, the mission will continually evaluate the functional performance of the space station assembly,

accumulating precious data and experience regarding space station operations. This initiative aims to assess the

coordination and compatibility of the ground support center in managing space station operational tasks, thereby

enriching the operational efficiency and troubleshooting capabilities of the space station, the CMSA said.

A significant highlight of the Shenzhou-17 mission is the pioneering experimental extravehicular repair

operations to be undertaken on the space station, which will be a historic first.

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