spacewalking

Spacewalking astronauts inspected the joint several times before and even collected samples of the steel grit for analysis back on Earth.

太空行走的宇航员以前对接头曾进行过几次检查，甚至收集了钢屑样品回地球分析。

互联网摘选

The skies above Earth are now littered with the debris of dead satellites, bits of old rockets and the odd tool dropped by a spacewalking astronaut.

地球上空现在遍布着垃圾&报废卫星的碎片和残骸，火箭上用废的零部件，宇航员进行太空行走时偶尔掉落的工具。

互联网摘选

A spacewalking astronaut ventures beneath shuttle Discovery's belly and successfully completes an unprecedented emergency repair.

一位在太空行走的宇航员冒险置身于发现号航天飞机下腹,圆满地完成了一次史无前例的紧急维修任务.

网络文摘精选

A brief introduction of a virtual reality simulation system for manned maneuvering unit ( MMU) is presented, MMU's dynamics/ kinematics module and thruster system module are formulated. Astronaut's multi-body model is established according to characteristics of spacewalking.

系统地介绍了载人机动装置（MMU，Manned maneuvering unit）的虚拟现实仿真环境，建立了MMU动力学／运动学模型、推力系统模型。

互联网摘选