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....
One after another they sailed to Ithaca.他们相继来船驶往伊萨卡.He longed to see again the rugged hills and pleasant shores of Ithaca.他渴望重新看到伊萨卡的崎岖的小山和优美的海岸.Grander people sought Homer's Ithaca on Lefkada or elsewhere on Kefalo...
He contemplated his hands, still frowning.他盯着自己的双手，眉头紧锁。Metempsychosis, he said , frowning. It's Greek: from the Greek. hat means the transmigration of souls.他皱着眉头说, “这是个希腊字眼儿, 从希腊文来的, 意思就是灵魂的转生. ”She stood up, frow...
He stood emotionless as he heard the judge pass sentence.他面无表情地站在那里，听法官宣布判决。Flying at 1,000 ft. he heard a peculiar noise from the rotors.在1,000英尺的高度飞行时，他听到旋翼发出一种奇怪的噪音。Rose heard the familiar voice, but tuned out the wor...
Duffy's primitive guitar playing is well below par.达菲粗糙的吉他演奏技巧远不够水平。The conditions are primitive by any standards.无论用什么标准来衡量，其条件都很简陋。It's using some rather primitive technology.它使用的是非常古老的技术。...