Three spacewalks are planned during Discovery's 14-day flight, to install Kibo, replace an empty nitrogen-gas tank and try out various cleaning methods on a clogged solar-wing rotating joint.
在14天的飞行中将计划安排三次太空行走。分别是：安装Kibo实验室、替换一只空氮气箱以及在一个尝试各种方法清理被卡住的太阳能电池翼旋转关节。
youdao