| 字词 | 指向性 |
| 释义 | 指向性换能器directional transducer指向性图directivity pattern; directional response pattern指向性图案 〖工声〗beam pattern; directional response pattern; directivity pattern指向性响应directional response指向性响应图directional response pattern指向性效应directionality指向性因数 〖工声〗directivity factor指向性增益directional gain; directive gain指向性指数 〖工声〗directional gain; directivity index |
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