defin 中文意思是什麼
defin
解釋
德芬-
Ng its running. it takes multiple strands of steel wire ropes or terylene ropes to wind spirally in the width of the belt and, the tracks where these ropes go are defin
它採用多股鋼絲繩或滌綸線繩沿膠帶寬度螺旋形地繞布，其位置定為同步帶的節線。
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