hydroelectrical
| servocontrol system
| hydroelectrical | |
| tech. | 水电的; 水力发电的 |
| servocontrol system | |
| math. | 伺服控制系统 |
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| 水电的; 水力发电的 | |||
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hydroelectrical : 118 phrases in 4 subjects |
| Chemistry | 1 |
| Earth sciences | 1 |
| Hydroelectric power stations | 1 |
| Technology | 115 |