multiple selector
| valve
| multiple selector | |
| mil., air.def. | 复选择器 |
| valve | |
| hydroel.st. | 电子管; 真空管 |
| hydroel.st. од. | 活门 |
| racing од. | 气门 |
| shoot. | 气枪阀门 |
| space | 排气阀; 通气阀门; 阀 |
| sport, bask. | 球嘴 |
| tech. | 阀 |
| |||
| 复选择器 | |||
| 复式选择器 | |||
|
multiple selector : 4 phrases in 4 subjects |
| Construction | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Technology | 1 |