Tunnel construction cracks' treatment often affects the valid use of engineering and the safety of cars.

隧道施工缝处理得好坏往往影响工程的正常使用和行车安全。

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There is a sequence in which the service functional capabilities must be invoked for valid use of the service.

为了服务的有效使用，服务功能性必须以一种顺序被调用。

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Users must ascertain that the Reference Standards they are using are a"Current lot" or a "Previous lot" within the valid use date.

用户必须确认正在使用的标准品是“当前批次”还是在有效使用日期之内的“先前批次”。

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In other words, it made such activity a valid example of fair use.

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These are all perfectly valid screening points that you should use.

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The bottom line is you can use these numbers to tell many different stories, some more valid than others, depending on the taxes you include and the income measure you use.

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