The Shenzhou XXI crew aboard China's Tiangong space station conducted their first spacewalk on Tuesday, according to the China Manned Space Agency.

据中国载人航天工程办公室消息，神舟二十一号乘组周二在中国空间站“天宫”完成了首次出舱活动。

Mission commander Senior Colonel Zhang Lu and spaceflight engineer Major Wu Fei returned to the Wentian science module at 6:45 pm after working for approximately eight hours outside the orbital outpost, the agency said.
据介绍，任务指令长、空军大校张陆及航天飞行工程师、少校武飞在舱外工作约八小时后，于下午6时45分返回问天实验舱。

Payload specialist Zhang Hongzhang, the third member of the Shenzhou XXI mission, stayed inside Tiangong to provide support.
本次任务的第三名航天员、载荷专家张洪章全程在“天宫”舱内提供支持。

Assisted by a team on Earth and the space station's robotic arm, the astronauts completed all assigned extravehicular tasks, including installing space debris shields and replacing old instruments with new ones.
在地面团队和空间站机械臂的协助下，航天员顺利完成全部出舱任务，包括安装防护太空碎片的装置以及更换老旧设备。

They also checked and photographed the windows of the Shenzhou XX spaceship's reentry capsule, one of which was damaged by a tiny piece of space debris, leading to the delayed return of the Shenzhou XX crew, the agency said.
他们还检查并拍摄了神舟二十号返回舱的舷窗，其中一扇舷窗曾被微小太空碎片击伤，导致神舟二十号乘组的归航被推迟。

This was the 25th spacewalk carried out by Chinese astronauts. Wu, 32, became the youngest Chinese astronaut to carry out extravehicular activities to date. The record was earlier held by Lieutenant Colonel Tang Shengjie, who made his first spacewalk at age 34.
这次出舱活动是中国航天员完成的第25次舱外活动。现年32岁的武飞成为迄今为止执行出舱任务的最年轻中国航天员，此前纪录由唐胜杰保持，他首次出舱时年仅34岁。

The Shenzhou XXI astronauts are conducting China's 16th manned spaceflight and comprise the 10th group of residents aboard Tiangong, which is currently the only operational space station independently run by a single nation.
神舟二十一号乘组执行的是中国第16次载人飞行任务，并成为“天宫”空间站的第10批驻留航天员。天宫目前是全球唯一由单一国家独立运营的在轨空间站。

The three astronauts have been aboard the colossal orbital outpost for nearly 40 days since arriving on Nov 1. They have examined instruments and carried out necessary maintenance work, checked emergency-response materials, and conducted emergency drills and robotic arm training.
自11月1日进驻巨大轨道空间站以来，这三名航天员已在轨工作近40天。他们期间检查设备、进行必要维修、核查应急物资，并开展应急处置演练和机械臂操作训练。

The crew members will conduct additional spacewalks and scientific tasks and, if necessary and feasible, they may also repair the broken viewport window on the Shenzhou XX spacecraft, the agency said.
据介绍，乘组后续还将开展更多出舱活动和科学实验任务，并将在必要且可行的情况下尝试修复神舟二十号飞船破损的舷窗。

payload specialist

载荷专家

space debris shields

防太空碎片防护装置

reentry capsule

返回舱

viewport window

舷窗