Ortherwise, the eccentric gas anchor, gas lift valve and surface check valve are installed to automatically unload the gas from the deeper layer and annulus between the tubing and the casing.

大气量时应用偏心气锚安装气举阀与地面单流阀两步卸气，实现了下部产层和油套环空自动卸气。

youdao

youdao

If it is easier to check a return value, or call an API to change a setting then go deep... and stop messing around on the surface.

如果检查一个返回值或者调用一个API来改变设置会更简单，那么就深入下去，停止在UI上浪费时间了。

youdao

When a team of Harvard researchers wanted to create the ultimate liquid- and solid-repelling surface, they looked toward the Nepenthes pitcher plant, where curious insects check in and never check out, thanks to slippery walls that lead to their tiny, horrific fate.

ENGADGET: SLIPS liquid repeller is inspired by carnivorous plants, enemy to insects and graffiti artists alike