datum levelreference level基准: datum standard; criterion; r ...电平: electrical level; level白基准电平: white reference level基准电平点: reference level point黑色基准电平: black reference level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:基准电平,即可在微信中查询翻译