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The DNS change can happen at any time, because there would be no disruption of service.
DNS修改可以随时进行，因为这不会中断服务。
youdao
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No disruption or length change of connected piping is required.
不需要破坏或改变管道长度。
youdao
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No disruption or length change of connected piping is required.
不需要破坏或改变管道长度。
youdao