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 ).N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps....
The magazine is devoted to anato-mizing the inadequacies of liberalism.该杂志致力于剖析自由主义的不足之处。To be wordly - wise and play safe is one of the manifestations of liberalism.明哲保身是自由主义的表现之一.That the communitarianism emerges as th...
Matters concerning regimentation, development, and administration of community areas.二三关于社区编定 、 开发及管理事项.Discipline without regimentation was Miss Bulstrode's motto.既注意纪律,又不造成一律化,这就是布尔斯特罗德小姐的座右铭.Using the imported sp...
为了挣点外快，她什么都肯做。She'd do anything for a bit of pin money.他偶尔会表演单口喜剧赚取外快。He supplemented his income with occasional comedy gigs.意识到自己快要退休了，他想要挣些外快。Realizing that his retirement was near at hand, he looked for some addi...
Especially when I feel seasick, I can't stand watching someone else vomiting. "尤其晕船的时候, 看不得人家呕. ”When I get seasick, I throw up my food.我一晕船就呕吐。I felt seasick so I went up on deck for some fresh air.我有些晕船, 所以到甲板上去呼吸...
逐步的变化比突然的 、 大规模的变化更好.Gradual change is preferable to sudden, large scale change.户点王也在开始逐步的上升阶段.The household spot king is also starting the gradual ascent stage.并且正逐步的成为中高阶层的养老镇了.Fairhope is swifty becoming a retirement ...
Two phase - shift - networks of frequency discriminator are given circuit and layout examples.本文较详细地分析了鉴频器用移相网络的特性和集成化难易点.Quartz crystal, crystal oscillator, ceramic resonator, ceramic filter, saw filter, ceramic discrim...
The eastern facade is composed of loggias covered in bamboo.东部的门面是由凉廊中涉及竹子.The loggias are equipped with bamboo sun screens to control sunlight on the balconies and interior.的凉廊配有竹防晒霜,以控制阳光的阳台和室内.The use of bamboo for th...