Louda劳达loudadj.大声的；吵闹的；引人注目的adv.大声地；响亮地loud speaker telephone扬声电话loud speaking receiver扬声受话器Loudong painting school娄东画派loud speaking telephone扬声电话机loudness discrimination响度辨别loudness control switch响度控制开关loudness balancing test响度平衡测试loud-speaker aperture机箱扬声器孔隙loud in one's praise of竭力称赞loudness control circuit响度控制电路