flapper-valve
| controller
| flapper valve | |
| avia. | 舌型阀; 翻板式阀门 |
| compr. | 片状阀; 铰链阀 |
| dril. | 止回阀; 单流阀 |
| oil | 瓣阀 |
| controller | |
| auto.ctrl. | 闭环控制用控制器 |
| fin. | 总会计师; 主计长 |
| hydroel.st. од. | 控制器; 调节器 |
| interntl.trade. | 监督官员; 总会计师; 审计员 |
| met. | 操纵器; 管理员 |
| |||
| 舌型阀; 翻板式阀门 | |||
| 片状阀; 铰链阀 | |||
| 止回阀; 单流阀 | |||
| 瓣〔舌形〕阀 | |||
| 瓣阀 | |||
| 舌状阀 | |||
| 挡止回阀; 挡翻板阀; 挡瓣阀; 挡板阀 | |||
|
flapper-valve : 11 phrases in 6 subjects |
| Drilling | 1 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 5 |