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The ordinary method for check of creep crack was illustrated.
介绍了电厂检测高温管道蠕变裂纹所采取的手段。
youdao
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Can I be exempt from the ordinary physical check-up this year?
我能免去今年的常规体格检查吗？
youdao
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Can I be exempt from the ordinary physical check-up this year?
我能免去今年的常规体格检查吗？
youdao