evacuating device 抽去包装件内部空气以达到预定真空度的装置。
... 抽样数据系统 sampled data system 抽真空装置 evacuating device 稠度调节器 consistence regulator ...
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本实用新型属于齿科用烤瓷炉的抽真空装置。
The utility model belongs to an evacuating device of a porcelain furnace in the odontology.
其优点是排空容积小、抽真空快、装置简单轻便、重量轻、体积小。
It has such advantages as small empty volume, high vacuumizing speed, simple and convenient structure, etc.
一种空调装置的清洗方法等，在使用二氧化碳作为工作制冷剂时，不用进行抽真空，就能降低残留的杂质的量。
Provided is a method for cleaning an air conditioner, by which a quantity of remaining impurities is reduced without vacuumizing, in the case of using carbon dioxide as an operating coolant.
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