... 高效筛粉机 efficient power sifter 筛粉机 sieving machine ; sifting machine ; powder sieve ; powder screen 片子筛粉器 Tablet powder sifter ...
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To draw lines, the etch a Sketch's stylus scrapes aluminum powder from the underside of a glass screen.
在绘制线条的时候，需要用蚀刻素描笔刮去玻璃屏幕底部的铝粉。
The other method is to pass the powder through 200 or fine mesh screen.
另一种是把软木粉用200目或更细的筛网进行筛选。
The other method is to pass the powder through 200 or fine mesh screen .
另一种是把软木粉用200目或更细的筛网进行筛选。
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