In many cases, the call could not be made directly.

在许多情况下，这次通话不能直接打通。

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Using this technology, the sample will not be damaged and could be tested directly.

同时该技术具有对检测样品无损和直接检测的优点。

youdao

Using this technology, the sample will not be damaged and could be tested directly.

同时该技术具有对检测样品无损和直接检测的优点。

youdao