回填夯 | |
hydroel.st. | backfill tamper |
| |||
backfill tamper | |||
backfill tamper (实机) |
回填夯 : 26 phrases in 9 subjects |
Architecture | 1 |
Bridge construction | 5 |
Drilling | 1 |
Electronics | 1 |
Engineering geology | 3 |
Hydroelectric power stations | 4 |
Metallurgy | 1 |
Oil / petroleum | 2 |
Technology | 8 |