For example, vacuum metallurgy, power condensers, transtormers, vacuum macerate process, fore-sucking for vacuum coating equipment, etc.
如：真空冶炼，电力电容器，变压器，真空浸渍处理，真空镀膜设备中的预抽等。
For example, vacuum metallurgy, power condensers, transtormers, vacuum macerate process, fore-sucking for vacuum coating equipment, etc.
如：真空冶炼，电力电容器，变压器，真空浸渍处理，真空镀膜设备中的预抽等。
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