| 1. | The preceding chapters discussed the various control elements or units .
在前面几章已经讨论了几种控制元件或器件。 |
| 2. | The transmitter-receiver housing contains the light source and all electronic and control functions .
发射器和接收器内装有光源和所有电子元件和控制元件。 |
| 3. | Other optical passive devices control devices
其他光被动元件控制元件 |
| 4. | Optical passive devices control devices
光被动元件光控制元件 |
| 5. | As an alternative a digital input to control the unit can be provided
还可以选择数字输入来控制元件单元。 |
| 6. | Coupled control element combination
耦合控制元件组合 |
| 7. | Air operated final control element
气动最后控制元件 |
| 8. | Graphical symbols for piping systems - valves and control regulation actuators
管路系统的图形符号阀门和控制元件 |
| 9. | Other control components
其他各种控制元件 |
| 10. | Final controlling element
终端控制元件 |
