- commutation factor
- 换向: changing-over; change; jibe; ...
- 系数: coefficient; ratio; modulus; ...
- 方向系数， 定向系数: directive coefficient
- 定向系数: coefficient of orientation; directional gain; directive gain; directivity index
- 方向系数: direction coefficient; direction factor; directive coefficient; directivity factor; exposure factor
下载手机词典可随时随地查词查翻译