英语词汇rough vacuum怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	rough vacuum
释义	rough vacuum 简明释义粗真空：指在真空系统中的一种状态，介于低真空和高真空之间。网络释义短语 1 roughing vacuum pump 真空粗抽泵双语例句 1 Soft start valves are used to throttle the gas flow in roughing lines. They prevent turbulences in piping and containers, particulate contamination in vacuum installations. 软启动阀适用于在粗加工过程中调节燃气气流，能防止管道和容器中的气体动荡、真空装置的微粒污染等。
随便看	notice of enquiry notice of entrance notice of expiry notice of export notice of fine notice of freight collection notice of hearing notice of hurry delivery notice of import notice of importation notice of infringement notice of intended dividend notice of intent notice of intention Notice of intention to amend valuation list notice of interim valuation notice of invitation for bids notice of judgment notice of lack of conformity notice of loading readiness notice of loss notice of loss or damage notice of meeting notice of motion notice of non delivery

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