Reliability of the sealed vacuum device is very important, and the main reason that affects reliability is its vacuum.

密封电真空器件的可靠性尤其重要，而影响其可靠性的主要因素是真空度。

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It is composed of two parts: the vacuum device and the signal collecting system.

该系统主要由真空装置和信号采集系统两部分组成。

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In addition, they usually have a vacuum device to test the operation of vacuum-advance mechanisms.

通常还有一个真空装置，用于检查真空点火提前装置的工作情况。

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Through these incisions, they used a miniature cutting and vacuum device to remove the gel in the middle of the eye and replaced it with saline.

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The device, which resembles a Roomba vacuum cleaner, attaches itself to a pane, maps out its perimeter and proceeds to clean the surface, playing a tinny tune when the work is completed.

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