【化】 真空填充器

摘要文章通过分析充填于绝热低温储罐夹层中膨胀珍珠岩的特性、充填中的重点技术问题，介绍了一种膨胀珍珠岩的真空充填技术。

anti-siphonage device (backsiphonage preventer, anti-vacuum device)

bale, casc (barrel), wood, roller, stone, vacuum-gripper, two-arm gripper

vacuum liquid chromatography

vacuum clarifier

ultimate vacuum

Happiness vacuum cleaner

water-ring vacuum pump

vacuum heat treatment