Single Post elevator used with 55 gallon cover mountedpump units.
单柱电梯使用55加仑装泵盖单位。
2
TC1 is mounted directly on the pump inlet tee replacing the convectron gauge shown on the diagram.
TC1直接安装在泵进口三通上，取代图中所示的对流管压力表。
3
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.