modulationn.调音；调节；转调；抑扬Modulation slope调制斜率Modulation tools模块化刀具modulation field调制场modulation meter调制(度)表, 调制度测试器, 调制(深度测量)计modulation level调制电平modulation error调制误差modulation cycle调制周期modulation stage调制级modulation ratio调制度,调制比modulation codes调制编码