relative amplitude ratio相对: opposite; face to face幅度: range; scope; extent; latitu ...比: 2相对幅度: relative amplitude方位对幅度: azimuth versus amplitude; azimuth vs amplitude下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:相对幅度比,即可在微信中查询翻译