| |||
line spacing | |||
pipe spacing | |||
piping pitch | |||
tube pitch; tube spacing |
管间距 : 22 phrases in 8 subjects |
Agriculture | 2 |
Electric machinery | 2 |
Electronics | 1 |
Hydraulics | 1 |
Nuclear and fusion power | 1 |
Oil / petroleum | 3 |
Technology | 10 |
Water resources | 2 |