低真空 meaning in Chinese

low vacuum; fore-vacuum

Vacuum degree high vacuum ; low vacuum
真空度：高真空低真空
Development of low - pressure vacunm heat treatment in past thirty years
三十年来我国低真空变压热处理技术的变迁
Vacuum trip device
低真空脱扣装置
Experimental study on hypervelocity flyer driven by strong detonation at low vacuum conditions
低真空条件下炸药强爆轰驱动超高速飞片实验研究
The economic situation of chinese plant fiber textile industry in his first half of 2005 society of chinese plant fiber textile industry
凝汽器半面纯凝半面低真空供热的可行性分析

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