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Quaternary是什么意思

Quaternary

例句

Iron - nickel - phosphorus - boron quaternary alloy electroless plating on copper panel was described. 在铜基上化学镀铁 - 镍 - 磷 - 硼四元合金.
The silicone quaternary was synthesized reaction of - H silicone, unsaturated - ether, chloroacetic acid, dimethylamine. 以低含氢硅油、不饱和聚醚、一氯乙酸和二甲胺为原料, 制备得阳离子有机硅油.

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