pneumatic lifting bag是什么意思

用法例句

Air lift is one of the most prospective lift methods in deep sea polymetallic nodule mining.

气力提升是大洋锰结核开采的主要扬矿方法之一。

The relationship between gas elevating capability of CTST and clear liquid height on the plate, F-factor based on tray hole, clearance between the cap and the plate was concluded.

研究了新型立体传质塔板(CTST)的气相提升能力,提出了相对提升量的概念。