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.A new method for determining hydrazide group introduced to polymethyl acrylate ...
桌上有一只用珠子串成的小三角形作装饰的盒子。On the table sat a box decorated with little pearl triangles.我倒很喜欢装饰的效果。I rather like the decorative effect.饰钉装饰的皮带a studded leather belt...
...pretty waterside hotels.美丽的湖畔旅馆...one of the swanky hotels that line the Pacific shore at Acapulco.坐落在太平洋沿岸的阿卡普尔科的豪华酒店之一Today Mahoney booked himself into one of the best hotels in Sydney...今天，马奥尼自己到悉尼最好的一家旅馆办理了入住手续。To...
Ni-Al-X 催化剂是己二腈加氢的优良催化剂.The said catalyst was a good hydrogenation catalyst for adiponitrile.在间歇式反应器中成功地实现了己二腈 ( ADN ) 在近临界水中的水解.Hydrolysis of adiponitrile ( ADN ) in near - critical water was successfully conducted in a...