In ancient times, dragons and phoenixes were used as the symbols of emperors and empresses.在古代, 龙和凤被用作皇帝和女皇的标志图案.The Ding Mausoleum is a tomb of Emperor Wanli ( Ming Dynasty ) and his two empresses.定陵 是明代万历皇帝及其两皇后的陵墓.Thi...
研究了具有弹性夹层的层板结构的振动特性.The vibration behaviour of sandwich structure with spring interlayer is studied.导出了双层板 ― 性夹层的综合单元刚度矩阵.The stiffness matrix of synthetic dual plate - spring interlayer element is deduced.型主动脉夹层的治疗——腔内修...
He answered carelessly and flippantly.他回答的时候漫不经心,没当回事。He answered the reporters’ questions flippantly; this cannot be airily explained to your children.他轻率地回答了记者的问题;这个不能随便说给孩子听。He answered the reporters'questions fl...
The heated gas is piped through a coil surrounded by water.受热气体通过水中的盘管输送。Mount Unzen has been spewing out volcanic ash, gas, and rock today.云仙山今天一直在向外喷涌火山灰、气体和火山岩。Ozone is a highly reactive form of oxygen gas.臭氧是一种非常活跃的氧...