To propose some effective ways of water saving in chemical industry, e. g. saving water by cooling system, condensed-water recovery, waste water treatment etc.
采取冷却系统节水、冷凝水回收利用、污水净化回用等措施，可有效节约化学工业用水。
Hydrophilic groups were introduced onto E-51 epoxy resin by chemical modification method to prepare epoxy resin aqueous system.
利用化学改性法将亲水性基团引入E - 51环氧树脂链上，经冰乙酸成盐并加水制备改性树脂水性体系。
E-nose system is a kind of instrument which is composed of selective chemical sensors array and appropriate pattern recognition system to detect and classify simple or complex odorant.
电子鼻是一种由具有部分选择性的化学传感器阵列和适当的模式识别系统组成、能够识别简单或复杂气味的仪器。
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