Preparation of salicylic hydrazide . Controlling material mole ratio and the product recrystallization is the key.水杨 酰肼的制备控制原料的摩尔比、产物的重结晶是关键....the degradation of salicylic acid in plants.植物中水杨酸的降解Topical ointments and c...
The invasion of tourists brought life to the summer resort.大批游客涌入, 使这个避暑胜地热闹起来。...a country that has been torn by civil war and foreign invasion since its independence.自独立以来就饱受内战和外敌入侵之苦的国家The New Monarchies and the Invas...
大家都想玩保龄球，因此大家都想开保龄球馆。Everyone wanted to bowl, hence everyone wanted to open a bowling alley.他们爱打网球和保龄球。They go in for tennis and bowls.我打保龄球是为了消遣。I go bowling for relaxation....
of pleasing mien有惹人喜欢的仪表with a sorrowful mien带着忧伤的神色With his wonted , collected and stately mien, he crossed the unhallowed threshold.他摆出平时那种泰然自若的庄严态度, 跨过那个污浊的门槛....his mild manner and aristocratic mien.他温文尔雅的举止和高贵风度It w...
He received a doctorate of philosophy in political science at Columbia University.他获哥伦比亚大学政治学博士学位.I graduated first in my class in political science.我学政治,毕业考头等的.Bob is best remembered for his work in economics, jurisprud...