single range
| guard-gate
| single-range | |
| gen. | 单量程的 |
| oil | 单量程 |
| guard gate | |
| bridg.constr. | 防护门 |
| el. | 堵水闸门 |
| hydroel.st. | 防护闸门; 安全闸门 |
| mil., air.def. | 保护波门 |
| tech. | 应急闸门; 防护闸; 备用闸门; 安全闸 |
| water.res. | 防预闸门 |
| |||
| 单量程的 | |||
| 单量程 | |||
| 单波段的 | |||
|
single range : 15 phrases in 7 subjects |
| Air defense | 1 |
| Animal husbandry | 1 |
| Desert science | 1 |
| Electronics | 6 |
| Materials science | 1 |
| Space | 1 |
| Technology | 4 |