Common ingredients likely to be contaminated with 1, 4-dioxane include PEG-100 stearate, sodium laureth sulfate, polyethylene and ceteareth-20.
常见的有可能造成14-二恶烷污染的原料包括聚乙二醇硬脂酸酯、月桂醇聚醚硫酸酯钠盐、聚乙烯和鲸蜡硬脂醇聚醚-20。
A series of polymerizable nonionic urethane surfactants were synthesized with 2, 4-tolylene di-iso-cyanate (2, 4-tdi), polyethylene glycols (PEG) of different molecular weight and allyl alcohol.
本文采用丙烯醇、不同分子量聚乙二醇(PEG)以及2,4 -甲苯二异氰酸酯(2,4 -TDI)为主要原料合成了系列不同分子量的非离子型可聚合聚氨酯表面活性剂。
PEG should be considered when enteral feeding is necessary for longer than 3-4 weeks in difficulty eating patients. However, this method is still not widely used in China.
进食困难患者肠内营养置管喂养超过3 ~4周以上就应考虑PEG，但由于诸多原因该方法在国内使用尚不普遍。
According to that algorithm, this article puts forward a formula to calculate the number of movements necessary for the 4-peg Hanoi Tower problem, and proves it using mathematical induction.
本文按照这种算法总结出完成四柱汉诺塔游戏之最少步数的公式，并用数学归纳法证明了它。
According to that algorithm, this article puts forward a formula to calculate the number of movements necessary for the 4-peg Hanoi Tower problem, and proves it using mathematical induction.
本文按照这种算法总结出完成四柱汉诺塔游戏之最少步数的公式，并用数学归纳法证明了它。
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