氯苯 、 溴苯和苯硫酚化合物的谱带出现于低限附近.In compounds such as chorobenzene, bromobenzene and thiophenol it lies close to the lower limit.方法以3-甲氧基苯硫酚和对甲氧基 - 苯乙酮为原料经溴化、烃基化、环合重排排制得目标产物.Methods: The target compound was synthesized through b...
昨天我去找他, 又扑空了.Yesterday I went to see him, but again he wasn't home.给了若干个与T-1LF拓扑空间等价的条件.The equivalent conditions in ? T - 1 L ? fts are given in this paper.给了若干个与T - 1LF拓扑空间等价的条件.The equivalent conditions in ? T - ...
They identified six plants as having potential for development into pharmaceutical drugs.他们验明6种植物有可能提炼出药物麻醉剂。We are aware of the potential problems and have taken every precaution.我们已意识到潜在的问题，并采取了全面的预防措施。Twelve potential...
The women have lustrous cascades of black hair.那些女子拥有瀑布般乌黑亮泽的秀发。Mary has a head of thick, lustrous, wavy brown hair.玛丽有一头浓密、富有光泽的褐色鬈发。But then Noble Talent and Lustrous Jade had begun to meddle.但是后来玮才和莹琨又开始惹事生非....