This was the second of three spacewalks in the coolant tank replacement process.
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 combined with no hot work allows you to continue producing throughout the replacement process.
在更换过程中无需动火，可以继续生产。
This combined with no hot work allows you to continue producing throughout the replacement process.
在更换过程中无需动火，可以继续生产。
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