summation loudness decrement总和: sum; total; totality; tale; ...响度: loudness; volume; sensitivit ...减: subtract量: measure capacity总和减量法: sigma-minus method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:总和响度减量，即可在微信中查询翻译
