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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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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Different from the imported conventional one, it is an X-ray screen lens coupled with a brightness intensifier, and is a non-vacuum device.

不同于常用的进口真空型X射线影像增强管，组合新型X射线影像增强器是由X射线屏和亮度增强器经过透镜耦合而成的非真空型组合器件。

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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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