冠醚溶剂萃取碱金属_stmopen 关键词】: 多醚 分配比 平衡浓度 平衡常数 苦味酸 [gap=853]Keywords】: Polyethers, Distribution ratio, Equilibrium concentration, Equilibrium constant, Picric ac..
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介绍含多醚基膦酸水处理药剂配方试验研究过程 ，概括该配方的使用特点 ，说明其现场应用效果。
This article introduces the experimental research and application process about the formula of water treatment agent containing polyether phosphonic acid, and generalizes its characteristics.
村里超过97％的妇女血液中含多溴二苯醚，在同一个月里，多溴二苯醚含量高的妇女的怀孕数是低含量妇女的一半。
More than 97% of the women had PBDEs in their blood, and those with high levels were half as likely to conceive in any given month as the women with low levels.
达扬教授称，在欧洲，那些最可疑的多溴二苯醚七八年前就已被禁用。
In Europe the most suspect PBDEs have been banned for seven to eight years, says Dr Dayan.
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