 |
| |||
| 活塞泵 | |||
| 往复式活塞泵 | |||
| 往复式泵; 循环泵 | |||
| 往返抽水机 | |||
| 往复泵 | |||
| 往复式泵 | |||
| 活塞式泵; 往复式水泵; 往复式水泵; 往复式水泵 | |||
| reciprocating pump: 48 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Chemistry | 2 |
| Drilling | 4 |
| Ecology | 1 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 6 |
| Technology | 28 |