Analogically, selectivity of 95 % - 97 % were att ained with Lindlar catalyst poisoned by lead.以Lindlar催化剂合成芳樟醇,脱氢芳樟醇转化率为99%～100%, 合成芳樟醇选择性为95%～97%.In dreams we think analogically.梦作类比的思考....
She still drives her trusty black Corvette.她仍然开她那辆皮实可靠的黑色克尔维特车。Lucy's distress call was heard by the corvette.驱潜快艇听到了露西的呼救信号.He drove home in his prize, a brand - new, shine white Corvette!他开走了他的奖品, 一辆崭新发亮的白色科维特牌轿车!...
The owl is sacred for many Californian Indian people.对于很多加利福尼亚的印第安人而言，猫头鹰是圣物。I bought a bottle of Californian white.我买了一瓶加州白葡萄酒。Joshua Halpern is a native Northern Californian.乔舒亚·哈尔彭是土生土长的北加州人。...
方法: 用高速牙钻于患骨表面行钻孔术,然后继续应用MEBO治疗.Method: Drilling through the surface of the injured bone, followed by ap plication of MEBO.患者对牙钻 、 检查用的尖锐器械 、 注射器、牙医态度 、 就诊环境等均有不同程式的焦虑.Patients were generally anxious about dental drill, ...
Excessive deflection in a structure may cause considerable damage to cladding.结构的过大挠度可以引起覆盖面的巨大破坏.Latest progress and research status of laser cladding ceramic coating was summarized.综述了激光熔覆稀土陶瓷涂层研究现状及其最新进展.The general d...
Jo Robinson began by humanizing the waiting time at the health centre with tea-making and toys for children.乔·鲁宾逊最早是为在医疗中心候诊的人们提供茶水和儿童玩具，使候诊过程变得人性化。The Chinese use different and process tea , making it into black tea and...