包括两个冷却剂系统水泵在内的备用组件都在舱里，安装工作被普遍认为是艰难的，必须进行两次太空行走。
Spare components are on board, including two coolant system pumps, but installation is considered difficult and two spacewalks will be required.
备用冷却剂泵由波音公司制造，重780磅，刚好安装在空间站气闸舱前部的一个外工作面上，相对接近于故障泵模组。
The spare 780-pound coolant pump, built by Boeing, is mounted on an external platform just in front of the station’s airlock module, relatively close to the faulty pump module.
备用冷却剂泵由波音公司制造，重 780磅，刚好安装在空间站气闸舱前部的一个外工作面上，相对接近于故障泵模组。
The spare 780-pound coolant pump, built by Boeing, is mounted on an external platform just in front of the station's airlock module, relatively close to the faulty pump module.
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