另外, 还讨论了苯甲醚类 、 二联苯恶二唑类、联苯胺类与 氮杂 类等新型双恶唑啉配体的合成.Besides, the synthesis of diphenyl ether, diphenyl oxadiazole diphenyl amine and aza - bis ( oxazolines ) is also discussed.以3,3′-二氨基联苯胺为显色剂, 研究了分光光度法测定有机物中的微量元素硒.Using 3,3� ...
赤道把地球划分成为两个半球.The equator divides the earth into two hemispheres.冷水可以涌开或者可以平流到冬半球.Cold water may be upwelled or may be advected into the winter hemisphere.以小脑半球白质受累最为严重, 但其灰质核团未见受累.Cerebellar white - matter was severely ...
Four officers were told to go off duty and rest at home.四名官员已经被通知停职在家休整。He heard the alarm go off.他听见警报响了。I started to go off the idea.我开始对这一想法失去兴趣了。...
这些粗野的字眼在日常谈话中是禁忌的.The rude words are taboo in ordinary conversation.如果药物与静脉所输的液体是配伍禁忌的, 就要用两次葡萄糖屏障液.If the drug and IV solution are incompatible, use two glucose barriers.预防性的使用抗菌素肯定是禁忌的.Prophylactic antibiotics are defi...