既然这些雌蚊在死之前有大量的时间进行繁殖，通过杀死它们所带来的进化压会低得多。

Since these females would have had plenty of time to reproduce before they died, the evolutionary pressure imposed by killing them would be much lower.

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尽管奇迹般地保存完好，但没有经受训练的眼睛也可能将她看作路边一只被压死的松鼠，她属于四千七百万年前——一个遥远得难以考究的年代。

Miraculously preserved though she is, she may look to the untrained eye like a roadkill squirrel, and she belongs to a time – 47m years ago – too remote to contemplate.

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试压前要先封好盲板，认真检查管路是否连接正确，有无管内堵死现象。

Seal the blind plate and check carefully whether the pipeline is correctly connected and block phenomenon in the pipe before pressure test.

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