Vacuum - pumping的用法和樣例：
例句
- This series of products was made by special technics, in which silica aerogel was adopted as the core, processed by heat-sealing in the vacuum.
該系列材料采用高性能的二氧化硅氣凝膠板材作為芯材，外覆復合層壓膜通過(guò)抽真空熱封制得。 - These manifolds are connected to the vacuum system through air take-off lines in order to remove the non-condensable gases from the condenser.
這些集管通過(guò)空氣管線(xiàn)與抽真空系統相連，以便從空冷凝汽器內抽走不可冷凝的氣體。
