Azone is synthesized with caprolactam and 1 - bromododecane by phase transfer catalysis, the yield is > 70 %.以己内酰胺、澳代十二烷为原抖,采用相转移催化法合成氮酮, 收率达到70%以上.A wide | bore capillary was employed to determine caprolactam content.利用...
A wide | bore capillary was employed to determine caprolactam content.利用大口径柱测试己内酰胺生产中己内酰胺含量.This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reactant.该方法使用带有二烷基咪唑盐 、 烷基吡啶...
A power failure plunged the whole house into sudden darkness.停电了,整个房子突然陷入一片漆黑之中.A power failure created an emergency in traffic and transportation.停电使交通运输陷入紧急状况.The hospital has a backup generator in case there is a powe...
显然她曾是个美人儿。It was evident that she had once been a beauty.依了我吧, 美人儿, 要不我就给捅出来!----难道要我这样说 吗 ?Be mine, beautiful female, or I will reveal all?稍微远点看,是个美人儿,只是靠近就有点走样.From a distance she was a beauty but closing up things cam...