这种反应构成了制备芳基环丙基乙炔的有效方法.This sequence constitutes an efficient method for preparing arylcyclopropylacetylenes.通过选择性氧化,将水溶性优良的羟丙基β环糊精转化为丙酮基羟丙基β环糊精.Water soluble hydroxypropyl � � cyclodextrin was converted to acetonyl hydro...
Cattle should be killed cleanly and humanely.牛应该被干净利落地无痛屠宰。Manufacturers are working with new fuels to find one that burns more cleanly than petrol.制造商们正在研制新型燃料，以找到一种比汽油更清洁的燃料。...wax strips which remove hairs cleanly fro...
当你从内心深处找到一种可以忍受一切痛苦的坚强力量时，你的成长历程就会出现飞跃。The turning point in the process of growing up is when you discover the core of strength within you that survives all hurt.这是认识过程的一次大飞跃.It is a big leap in the process of cognition....