A method of synthesis of butyl isobutyrate catalyzed by amidosulphonic acid has been studied.以氨磺酸为催化剂催化合成了异丁酸丁酯,确定了酯化优化条件.The method about synthesis of approximate straight line motion mechanism based on moving centrode ...
The present assembly will be dissolved on April 30th.现在的议会将于4月30日解散。Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。She dissolved into tears at the mention of Mun...
The climber slipped and dropped to his death.攀登者一失足掉下去摔死了。The climber carried some food in a pack on his back.那名登山者背着一袋食品.The climber took some food from the bulky pack on his back.登山者从背后大包裹里拿出一些食物....
Yulan magnolia can adapt to a variety of soils.玉兰花能适应各种土壤.Sunshellone's fingerprint, is like magnolia blossoms in the End of the World.阳光的指纹, 好似木兰花,开在海角.Conclusion Campbell magnolia should not be used as medicine fo...
汞的化学元素符号是什么？What's the chemical symbol for mercury?添加的甲基汞的回收率据报到达90%左右.The recovery of added methylmercury was reported to be approximately 90 %.这种灯是由一根充有氩气和微量汞的玻璃管组成.This light consists of a glass tube containing a...