clearance hole meaning in English

出砂孔(铸件的)
出砂孔排屑孔
穿通孔,出砂孔
排砂孔
通焊孔
隙孔

Fasteners . clearance hole for bolts and screws
紧固件.螺栓和螺钉的间隙孔
Clearance holes for bolts , screws and studs
螺栓螺钉和螺柱的通孔
Clearance holes for bolts screws and studs
螺栓螺钉和螺柱的通孔
Diameter of clearance holes and counterbores for bolts and screws
螺栓和螺钉用排屑孔径和埋头孔径
Fasteners - clearance holes for bolts and screws
螺栓和螺钉通孔

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