n. mouthpiece
...尘器、iv)气缸型落地式(floor type)真空吸尘器等。卧式真空吸尘器是当前家庭中最为普遍使用的真空吸尘器，它是将吸入管嘴(nozzle)和主体通过连接管连通的方式的真空吸尘器。
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为了防止测压管嘴被微细颗粒堵塞，在管嘴处以低流速向床内注入气体。
To prevent clogging of the pressure tap by fine solids gas is bled into the bed at low velocity at the taps .
积时式悬沙采样器进口管路的结构和几何参数是影响采样器管嘴进口流速的关键因素之一。
The parameters of water inlet conduit of the time-accumulating sediment sampler are one of the key factors for the flow rate at water inlet.
是材料了应力消失了吗，是它吗，当他们知道这个特殊的管嘴时，这个特殊的管嘴，它是高度受压的吗，当他们装配的时候？
Was this stuff stress relieved? Was it, when they fabricated this particular nozzle, this particular piece, was it highly stressed when they assembled it?
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