 |
| |||
| pneumatic mortar | |||
| injection mortar; sprayed mortar | |||
| air-blown mortar; pneumatically applied mortar; spread mortar; mortar injection; mortar grouting | |||
| 喷射 砂 浆: 14 phrases in 6 subjects |
| Bridge construction | 2 |
| Drilling | 1 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Technology | 6 |