This paper reports a new synthetic method of nickel borate acylate.本文研究了以碳酸镍合成硼酰化镍的新方法.Through nitrosation , hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.收率相对于丙二酸二乙酯达到了80...
Gail was silent for a moment, regarding Harry with his steady gaze.盖尔镇定地注视着哈里，沉默了片刻。He spoke no English and was completely silent during the visit.他不会说英语，参观过程中一言未发。The forest was dark and silent, haunted by shadows and u...
将军允诺于一月份之前交出兵权。The General had promised to cede power by January.在兵权问题上患幼稚病, 必定得不到一点东西.Where there is naivety on the question of military power , nothing whatsoever can be achieved....