| 单词 | active device |
| 释义 | active device 1 An electronic component, such as a transistor, that is capable of amplification. 2 An artificial satellite that receives information and retransmits it after amplification. 3 A radar device that emits microwave radiation and provides information about a distant body by receiving a reflection of this radiation. Compare passive device. |
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物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。