N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP ).Surface active propertie...
不过，缺乏的是一种内在的艺术凝聚力。What is missing, however, is an internal, artistic cohesion.他们给他验了血，以检查是否有维生素缺乏的迹象。They did blood tests on him for signs of vitamin deficiency.认为老年人性缺乏的倾向the tendency to see old people as asexual...
People we spoke to today were really rather fatalistic about what'sgoing to happen.今天和我们交谈的人对将会发生的事情都表现得相当听天由命。People we spoke to today were really rather fatalistic about what's going to happen.今天和我们交谈的人对将会发生的...
乔姆斯基的这篇评论题为《心理学与意识形态》。Chomsky's review is entitled "Psychology and Ideology".不要修改少数论题以致排除所有其他的.Don't revise a few topics to the exclusion of all others.他把每个论题都变成了道德的讨论.He turns every subject into a moral discus...