空气流动水平或垂直空气流动，这取决于应用和均匀度要求。
Air flow Horizontal or vertical air flow, depending on the application and uniformity requirements.
通过药品颗粒垂直空气输送的实验，分析了回旋气流对药品颗粒破损的影响。
The effects of swirling flow upon damage phenomenon of pharmaceutical granule were investigated by performing the vertical pneumatic conveyance of pharmaceutical granule experimentally.
垂直的光柱通常是由高空云层里的冰晶掉到寒冷空气中所造成的。
These vertical beams of light are usually created in cold air by ice crystals falling from high clouds.
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