Stress relief treatment is necessary to prevent stress corrosion.

为了防止应力腐蚀需要进行除应力处理。

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The long neck flange should have stress-relief heat treatment after welding.

拼接法兰应进行焊后消除应力热处理。

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The long neck flange should have stress-relief heat treatment after welding.

拼接法兰应进行焊后消除应力热处理。

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