anti-siphonage device (backsiphonage preventer, anti-vacuum device)
真空化学
vacuum chemistry【化学】
暂无补充释义。
vacuum chemistry【化学】
暂无补充释义。
anti-siphonage device (backsiphonage preventer, anti-vacuum device)
vacuum filter
vacuum-tube amplifier【电子】
Happiness vacuum cleaner
vacuum-tube clipping circuit
vacuum-tube clipping circuit【电子】
ionization(vacuum) gauge
oilless vacuum pump