light concentration英语标准发音：light concentration英式发音：美式发音：翻译中文光浓度light concentration - 基本释义[词典1]低浓度light concentration - WEB词典light concentration低浓度light alkali concentration淡碱浓缩light bracket concentration低浓度 参考资料： 1.百度翻译：light concentration2.有道词典：light concentration3.爱词霸：light concentration
