vacuum chamber evacuation system真空室: vacuum chamber抽空: manage to find time系统: system抽真空系统: pumped vacuum system; vacuum pumping system; vacuum-pumping system真空系统: vacuum and sub-atmospheric system; vacuum line; vacuum plant; vacuum system下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:真空室抽空系统，即可在微信中查询翻译
