| |||
screen pipe | |||
perforated pipe |
穿孔管 : 40 phrases in 13 subjects |
Agriculture | 3 |
Drilling | 1 |
Ecology | 2 |
Electronics | 1 |
Engineering geology | 2 |
Mechanics | 1 |
Metallurgy | 7 |
Nursing | 1 |
Oil / petroleum | 2 |
Otorhinolaryngology | 1 |
Steel production | 1 |
Surgery | 3 |
Technology | 15 |