pole spacing 中文意思是什麼
pole spacing
解釋
桿擋-
Ratio of the pole spacing to the bore diameter of the pole pieces
極靴的間距與孔徑比 -
Overhead line private connection boxes ; disk for spacing of conductors in the roof pole stand tube
架空線路專用接線盒.屋頂電桿支架管中導線間距盤
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