The jettison device is a spring. The utility model has the advantage of reducing the subpressure loss of the vacuum in the process of perforation, and saving energy.

本实用新型的优点是减少在打孔时的真空的负压损失，节约能耗。

youdao

Medical device giant Abbott Laboratories, for example, recently announced it would jettison its laboratory-research-focused subsidiary into an entity called AbbVie.

FORBES: Why Spinoff Stocks Are Sizzling (And Should Stay Hot)