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1.The final is drawing near soon.
马上就要期终考试了。收藏指正
2.The spitting is done generally in three musical beats, the first two being sounds of drawing in and clearing the throat in preparation for the final beat of spitting out, which is executed with a quick forcefulness: staccato after legato.
吐痰的动作普通是以三个音乐的拍子去完成的,开头两个拍子是吸进和廓清喉咙的声音,以引出最后吐出痰时的拍子;吐出痰时的动作是急速有力的: “连音”继之以“断音”。收藏指正
3.The flow profiles by CAD (computer aided design) and CAM (computer aided manufacture) of SPRM are proposed in the paper. Authors consider that the performance prediction combined with grain design and thermo-protection calculation are the main content in theory and structure design of SPRM, and drawing by computer is the final expression of design idea.
提出固体火箭发动机领域计算机辅助设计(CAD)和计算机辅助制造(CAM)的流程图,并认为结构装药设计的性能预示和热防护计算是发动机理论和结构设计的中心内容,计算机制图是设计思想的最终表达。收藏指正
4.Abstract: Optimum design of individual foundation considering the effect of strength and deformation is discussed in this paper.The optimal mathematical model of determining the bottom surface demention of individual foundation under eccentric load is derived.The optimal solution is decided by method of optimization and the method we select is penalty fonction and complex method.The program of optimum algorithm is comiled and design and drawing of individual foundation is completed.The final results of engineering samples suggest that the cost of material and engineering amount can reduce approximatly 5%-6%.A fair-sized economic efficiency can be received by using optimum method to design foundation.
文摘:笔者讨论了独立基础在考虑强度和变形条件下的优化设计.导出了确定独立基础底面尺寸的优化数学模型,导出了偏心荷载作用下基础的高度和底面配筋的计算公式,求解优化解采用最优化方法的复合形法和罚函数法.通过基础实例和工程实例的计算表明优化设计可以节省材料和工程量5%~16%.所以将本文优化方法用于基础设计,会产生较大的经济效益.收藏指正
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