他精通机械，了解许多有关声音的知识。He was a very mechanical person, who knew a lot about sound.佩奇精通多种风格的爵士乐。Page is well versed in many styles of jazz.他对法语的精通是众所周知的。His mastery of the French language was proverbial....
The trap is commonly used for floats, thermal power, free - float, double - metal - style , pulse, and so on - bell - shaped float.常用的疏水阀有浮桶式 、 热动力式 、 自由浮球 式 、 双金属片式、脉冲式 、 钟形浮子式等....
The variation of the desorption activation energy of dichloromethane on activated carbons was discussed hardbase ( HSAB ) princi.主要研究了金属离子改性活性炭对二 氯甲烷 脱附活化能的影响.Antioxidant activities of six spice materials have been measu...
The seven-year-old was found crying with scratches on his face and neck.那名7岁男孩被发现时正在哭泣，脸部和颈部都有划伤。Aside from a few scratches, I'm OK.除了几处擦伤外，我安然无恙。I heard the scratches on the old records.我听到旧唱片的沙沙声....