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This problem can only be found by physical inspection.
这个问题仅凭物理检查就可以看出。
youdao
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They require only a visual and physical inspection before use.
只需要在使用前对其进行目视或实际检查即可。
youdao
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They require only a visual and physical inspection before use.
只需要在使用前对其进行目视或实际检查即可。
youdao