我们的产品目录包含了广泛的化学和生物化学活性物质。
Our product catalogue covers a wide range of chemistries and biological activities.
控制化学活性物质的加入量，可制得高残碳、高强度的优质沥青结合耐火材料。
When the amount of the chemical active agent is control, A pitchbond refractory with high carbon content and high strength is obstained.
他们发现抗农达除草剂中的活性成分、甘草磷和其它化学物质及其分解产物对健康有重大不良影响。
They found serious health impacts from Roundup's active ingredient, glyphosate, other chemicals in the formulated herbicide and its breakdown products.
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