In making blood counts a microscope with a mechanical stage should, if possible, be used.

如果可能的话，在作血细胞计数的时候使用机械平台的显微镜。

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One-stage or two-stage pumps feature up and down movement of flexible diaphragm during the mechanical stage which induces a flow of gas through the pump head, generating a vacuum.

单级或双级泵是通过橡胶膜片上下往复运动，引导气流通过泵头，形成真空状态。

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This means that if you're going to trade and not monitor yourself, but at the same time you desire consistent results, then trading exclusively from the mechanical stage will resolve the dilemma.

这意味着，如果你要交易，但没有监视自己，同时你又渴望持续一致的结果，那么就用机械的方法交易以解决这个两难。

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Henning Solberg, elder brother of Petter, saw his hopes of a top-three finish dashed when he was forced to stop on stage nine with mechanical problems.

BBC: Marcus Gronholm had won four of the six stages on day one

Gronholm reduced the deficit with a win in stage nine, which saw Manfred Stohl retire from 10th place with mechanical problems.

BBC: SPORT | Motorsport | Rallying | Loeb in command in Germany Rally