一些人猜测反对的原因是担心很多价格昂贵获利丰厚的新药很可能物非所值。
Some suspect that its opposition stems from the fear that many expensive and profitable pills would be found to be of dubious value.
砷的主要处理方法有硫化物沉淀法，或与多价重金属络合。
Major treatment methods for arsenic include sulfide precipitation, or complexation with polyvalent heavy metals.
多价金属羟基络合物；
选择多价金属的有机化合物为降解剂，研究了其在模拟堆肥环境中对PE的促降解规律。
Promotion degradation mechanism of multi valence metallic organic compounds on PE under composting conditions is studied.
作者用多价阳离子化合物鱼精蛋白经主动脉恒压灌注大鼠活体肾，造成实验性微小病变型肾病综合征模型。
A rat model of minimal change nephrotic syndrome was induced by kidney artery infusion with the polycation protamine.
本发明涉及新的水溶性纤维素衍生物，其包含能够与多价金属离子形成配合物的配体。
The invention relates to novel water-soluble cellulose derivatives comprising a ligand capable of forming a complex with a polyvalent metal ion.
本发明涉及新的水溶性纤维素衍生物，其包含能够与多价金属离子形成配合物的配体。
The invention relates to novel water-soluble cellulose derivatives comprising a ligand capable of forming a complex with a polyvalent metal ion.
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