Sodium ethylate was used as catalyst in Baker - Venkataraman of cyclization, and all factors were studied.环合反应采用乙醇钠作为Baker-Venkataraman重排反应的催化剂, 研究了影响反应的各个因素....
He was beginning to enjoy the beauties of nature.他开始享受大自然之美。the beauties of nature自然界中美好的东西A bevy of bathing beauties appeared on the beach.沙滩上出现了一群游泳的美女....
Intracapsular surgery . The surgeon removes the entire lens, including the capsule.医生会摘除整个晶体, 包括晶状体囊.A brilliant surgeon cannot perform without a competent anaesthetist, attentive theatre nurses and effective cleaners.一名...