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| ανιχνευτής προσέγγισης | |||
| αισθητήρας απόστασης | |||
| αισθητήρας εγγύτητας (A type of sensor that can determine without physical contact if an object/person is nearby, or can be used to measure the distance between the object/person and the sensor device) | |||
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proximity sensor : 4 短语, 2 学科 |
| 电子产品 | 2 |
| 运输 | 2 |