[数] 降维法 method of dimensions: 维量法,因次法; 因次法method of reduction: 还原法; 退切法reduction method: 还原法; 设置限制方法acetylene reduction method: 乙炔还原方法air reduction method of smelting: 空气还原熔炼法下载手机词典可随时随地查词查翻译