| |||
concrete pillar | |||
concrete pier | |||
concrete thrust block | |||
| |||
concrete pillar |
混凝土墩 : 33 phrases in 7 subjects |
Bridge construction | 4 |
Electronics | 1 |
Engineering geology | 1 |
Hydroelectric power stations | 6 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Technology | 19 |