| |||
laying pipes | |||
laying pips | |||
lay the pipeline | |||
pipe laying | |||
laying pipe; run a line; tubing |
铺设 管 道 : 27 phrases in 7 subjects |
Agriculture | 1 |
Drilling | 1 |
Engineering geology | 2 |
Metallurgy | 2 |
Oil / petroleum | 5 |
Oil processing plants | 2 |
Technology | 14 |