All the attempts to petition the Congress had failed...所有向国会请愿的努力均告失败。They began to petition the queen.他们开始企求女王.We recently presented the government with a petition signed by 4,500 people.最近我们向政府递交了有4,500人签名的请愿书。Everyone...
Liver cancer is linked to the hepatitis B virus.肝癌与乙肝病毒存在关联。As a major health risk hepatitis is second only to tobacco.肝炎是仅次于吸烟的主要健康隐患。We should require that every student is immunized against hepatitis B.我们应要求每个学生都注射乙肝疫...
这种方法可用于浴槽加工过程.This scheme can be used for bath processes.铣槽加工是大型航天火箭喷管制造中的关键工序.Milling grooves on aerospace rocket engine - nozzle surface is an important process.介绍了高碳高速钢辊套及其装配与轧槽加工的特点,并提出了应用中应注意的问题.The characteristics ...