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betaine amphoteric surfactant
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betaine amphoteric surfactant
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甜菜碱表面活性剂
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betaine amphoteric surfactant
甜菜碱表面活性剂
由季铵盐型阳离子部分和羧酸盐型阴离子部分构成的表面活性剂。
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fire standard
fire station
fire statistical index
fire statistics
fire statutes and regulations system
Firestone Agreement
fire supervising
fire supervision and inspection system
fire supervision technical equipment
fire suppression device
fire technology and engineering
fire telephone system
fire test
fire triangle
fire tube boiler
fire tube type heater
fire vehicle access
fire ventilation
fire wall
firewall
fire watchtower
fire water
fire weather rating
fire whirl
fire wireless three level network
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