| |||
coarse thread | |||
bastard thread; coarse pitch thread |
粗 螺纹 : 34 phrases in 12 subjects |
Automobiles | 3 |
Chemistry | 2 |
Compressors | 1 |
Drilling | 4 |
Earth sciences | 1 |
Electric machinery | 1 |
General | 2 |
Mechanic engineering | 2 |
Mechanics | 3 |
Oil / petroleum | 3 |
Rail transport | 1 |
Technology | 11 |