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。

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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。

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Any repairs later this week almost certainly will involve replacing the faulty ammonia pump, a difficult job that would require two spacewalks, AP adds.

BBC: Cooling system fault hits International Space Station