Media type check valve for preventing backflow.

止回阀类用于阻止介质倒流.

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Filter element micron ratings are available from. 1 to 300 micron depending on media type.

过滤元件微米收视率可从0.1至300微米取决于介质类型.

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The most common way to discover the media type is to look at the file extension.

如果你想知道多媒体的格式,那么最简单的方法就是查看它的扩展名.

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