blind hole [地质] [油气] 盲孔 ; 闭孔 ; 不贯穿孔

Blind Via Hole 盲导孔 ; 盲孔

tapped blind hole 螺纹盲孔

Blind & Buried Hole Drilling 盲孔钻孔

blind hole method 盲孔法

blind threaded hole 螺纹盲孔

blind-hole method 盲孔法

Blind pilot hole 盲导孔

blind hole processing 盲孔加工

blind dowel hole 合模销盲孔