这里说的是灭火筒的用法，你把泡沫挤出喷嘴并（用喷嘴）把它引向火的底部。
You squirted foam out of a nozzle and directed it (using the nozzle) at the base of the fire.
本文介绍直筒型容器内的熔体，在轴对称浸入喷嘴吹气搅拌下所形成循环流场的基本特征。
Characteristics of circulating flow field in a ladle stirred by bottom blowing through submerged nozzle installed symmetrically have been studied.
在不同的导流筒直径、喷嘴直径和喷嘴位置对液固环流反应器中固体流动行为进行考察。
The solid flow behavior in liquid-solid loop reactor was studied with draft tubes, and nozzles of different size and with different nozzle location.
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