The nineteenth century witnessed a revolution in ship design and propulsion.19世纪船舶设计和船舶动力领域发生了重大的变革。Interest in jet propulsion was now growing at the Air Ministry.航空部对喷气推进的兴趣正在增加。The liquids employed for rocket propulsio...
flight vehicle propulsion system飞行器推进系统The nineteenth century witnessed a revolution in ship design and propulsion.19世纪船舶设计和船舶动力领域发生了重大的变革。...the submarine's propulsion system.潜水艇的推进系统Adduction of the upper arm to m...
There needs to be a properly informed public debate.有必要让公众在充分知情的状况下展开辩论。Choose a soft, medium or firm mattress to suit their individual needs.针对他们各人不同的需要挑选柔软、软硬适中或者坚硬的床垫。The economy needs an immediate 2 per cent cut in i...
Here are ideas people have about life in the twenty - first century.这儿是 二十一 世纪人们对生活的一些想法.The use of integrated pest management will expand in the twenty - first century.在二十一世纪,害虫综合治理的应用将扩大.And the number of extinctions c...
The non - Euclidena geometries were in effect subordinated to Euclidean geometry.非 欧几里德几何实际上是从属于欧几里德几何的.He did not grant independent existence to the non - Euclidean geometries.他不承认 非 欧几里德几何的独立存在性.But none of the mathema...