drum length 中文意思是什麼
drum length
解釋
滾筒長度-
Belt length from head to tail roller is 2820 metres centre of shaft, 800mm wide, 110mm drum diameter
是說網帶的長度是2820米, 80厘米寬.滾桶直徑是11厘米嗎 -
This texts regards the shaft as one well unit equivalent square length of the drum
本文將抽水井當作一個與圓筒軸長相同的等效方形簡單元來處理。 -
Coiling length of drum
卷線盤的繞線長度
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