Pulls out the vacuum的用法和样例：
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.
该系列材料采用高性能的二氧化硅气凝胶板材作为芯材，外覆复合层压膜通过抽真空热封制得。 - These manifolds are connected to the vacuum system through air take-off lines in order to remove the non-condensable gases from the condenser.
这些集管通过空气管线与抽真空系统相连，以便从空冷凝汽器内抽走不可冷凝的气体。
