square-opening sieve 中文意思是什麼
square-opening sieve
解釋
方孔篩-
Sieve diameter is the length of the side of a square sieve opening through which the given particle will just pass.
「篩析粒徑」是指一個四方篩孔的邊長,某已知的顆粒將恰好通過這篩孔。
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