bolt hole

常用短語

Cylinder head bolt hole汽缸蓋；汽缸蓋螺絲孔；橫流式

bolt hole crack螺孔裂紋

bolt hole chamfering螺栓孔削角；螺栓孔倒棱

roof bolt hole頂板錨桿鉆孔

bolt-hole避難所；螺栓孔

flange bolt hole法蘭螺栓孔

foundation bolt hole機架螺絲孔；地腳螺栓孔

mounting bolt hole裝配螺栓孔

bolt hole sealing washer螺孔密封圈