The odd tool dropped by a spacewalking astronaut.
宇航员进行太空行走时偶尔掉落的工具。
We do a lot of the spacewalking training in a very large swimming pool, about 40 feet deep.
我们在一个很大的大约有40英尺深的游泳池里进行大量的太空行走练习。
Spacewalking astronauts installed the new cupola in February 2010, adding a homey feel to the orbiting outpost.
2010年2月，天马行空的宇航员们为空间站安装了这座新的观景台，给这座轨道上的观察哨增添了家的感觉。
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。
NASA has looked at gravity countermeasure suits for spacewalking in the past, but tabled the research due to technical and operational issues.
美国宇航局曾经研究过提供重力的宇航服，但是由于技术和操作问题束之高阁。
The solar ejections that cause auroras can also create geomagnetic storms that can affect spacewalking astronauts, Earth-orbiting satellites, and even communications and power systems on the ground.
引起极光的太阳能量抛射还能引起地磁风暴，能够影响宇航员的太空行走，绕地卫星甚至是地面上的通信和电力系统。
A pair of spacewalking astronauts wired the international space station's newest room on Saturday, crossing the last major task off their to-do list before the next shuttle mission early next month.
周六，国际空间站的两位宇航员通过太空行走，接通了它于一个新太空舱间的管线连接，赶在下月初的航天飞机发射之前完成了他们工作表上的最后一个重要任务。
A pair of spacewalking astronauts wired the international space station's newest room on Saturday, crossing the last major task off their to-do list before the next shuttle mission early next month.
周六，国际空间站的两位宇航员通过太空行走，接通了它于一个新太空舱间的管线连接，赶在下月初的航天飞机发射之前完成了他们工作表上的最后一个重要任务。
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