你必须敢于拿球，这样才能发挥作用。

You should always want to get on the ball and make an impact.

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目的对主动脉内球囊反搏(IABP)在泵衰竭治疗中的作用进行评价。

Objective To evaluate the curative effect of intra-aortic balloon pump (IABP) on cardiac pump failure.

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这个浮球是一个直接作用的浮控开关。

The float is a direct acting float switch.

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目的考察活性保护剂对微球中蛋白活性的保护作用。

OBJECTIVE to investigate the effect of activity protectors on the protein activity in microspheres.

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对于大断面球墨铸铁件，有防止球化不良和消除反白口的作用。

It has the effect keeping heavy section ductile iron casting from...

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对于大断面球墨铸铁件，有防止球化不良和消除反白口的作用。

It has the effect keeping heavy section ductile iron casting from...

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