a local region of low pressure or descending air that causes a plane to lose height suddenly 同义词：pocket, air hole,
例句与用法
1.
Tromp the soil solidly, leaving no air pockets . 将土踩实，不要留下空隙。
2.
We had a bumpy flight because of air pocket . 我们的飞行甚为颠簸，因为遇到气穴。
3.
Some rocks , like gray volcanic pumice , are laced with air pockets created when gases expanded inside the rock while it was still molten 有些岩石（像灰色的火山浮石）会布满气窝，这是岩石还在熔融态时，内部气体膨胀而成。
4.
Shanghai shengbaolong packing co . , ltd . the main products : paper inn board , paper protect horn , slippery to ask board , container buffer air pocket , oversize sea - freight carton and special aviation carton , etc . of high strength of volume 上海胜保隆包装材料有限公司的主要产品为：纸栈板、纸护角、滑托板、集装箱缓冲气袋、超大体积的海运纸箱和特高强度的航空纸箱等。
5.
Tin hau seven sound works spread out in vario us parts of the city , creating sound - full air pockets in our densely populated sound environment . anson mak presents sonic meditation exercise i , which plays on the geographies of sound sources to reveal the phenomenon of urban segregation 由七位具十年以上声音经验的艺术家组成六个关于听外（界）和听内（心）的声音作品，以喃喃细响打断城市的底声流（汽车引擎，冷气磨动，商场的背境音乐） ，让我们在挤逼的声境重拾听觉的敏锐。
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