节约不仅体现在金属的使用上，而且体现在运输，甚至在冷却过程中：罐身越薄冷却速度越快。
That means savings not only on the metal itself but also on transport and even cooling: thinner cans chill faster.
更换冷却液罐的整个过程要进行3次太空行走，这是第2次。
This was the second of three spacewalks in the coolant tank replacement process.
正在着火的管道长度大概在200米左右，消防官兵一边在用冷水冷却原油储备罐，一边用泡沫灭火。
The length of the pipeline is on fire about 200 meters, fire officers and soldiers while cooling oil reserves in the tank with cold water, while fire-fighting foam.
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