 |
| |||
| fail closed | |||
| air-to-open (клапан); normally closed (an increase in air pressure to the actuator is required to cause the valve to open; клапан) | |||
| fail close | |||
|
при отказе закрыт : 2 短语, 1 学科 |
| 自动化设备 | 2 |
|
| |||
| fail closed | |||
| air-to-open (клапан); normally closed (an increase in air pressure to the actuator is required to cause the valve to open; клапан) | |||
| fail close | |||
|
при отказе закрыт : 2 短语, 1 学科 |
| 自动化设备 | 2 |