anti-siphonage device (backsiphonage preventer, anti-vacuum device)
竹壳热水瓶
vacuum flask with bamboo casing
暂无补充释义。
相关词条
vacuum chamber
vacuum tube
vacuum clarifier
vacuum-tube amplifier【电子】
vacuum-tube clipping circuit
high-vacuum insulation
ballast pump【真空】;gas ballast pump【真空】;vacuum pump of max air【真空】