日期:
来源:雅诚德英语网
The products were colourless transparent liquid without any sediment at room temperature.
用该催化剂合成的产品无色透明,室温下无絮状沉淀物。
The products were colourless transparent liquid without any sediment at room temperature.
用该催化剂合成的产品无色透明,室温下无絮状沉淀物。