使转向

Because DC motor has commutator, it is limited to use. People took into account VC motor.

由于有换向器的存在，使直流电机的使用受到很大限制，于是人们开始转向异步电机，但异步电机的调速性能难以满足生产的要求。

He proved that the left ward turning of Yangtze river diluted water is mainly resulted from the interaction between the bottom declining and the lag of the transversal pressure gradient, made the numerical simulation and preliminary study on the thermohaline staircase structure formation mechanism, improved American Academician Wunsch's inverse method of ocean circulation, jointed the discover of " Mindanao Under Current", which is the first ocean current found and named by Chinese scientists and widely accepted over the world, simulated the horizontal and vertical carbon fluxes in East China Sea by a simple ecosystem model, estimated the photosynthesis efficiency less than 8% in Jiaozhou Bay, applied statistical downscaling technology to Chinese coast and Japanese islands realizing the simulation and forecast of sea level low frequency variations, pointed out that the quasi-periodicity of El Nino events should be resulted from the interaction between the 3~4 year oscillation in tropical Pacific and decadal oscillation in the northern Pacific of middle latitudes of the air-sea coupled climate system and at decadal time scale the precipitation influence on sea level variation along Chinese coast and Japanese islands becomes more important, which is closely related to the decadal oscillation of air-sea coupled climate system, therefore precipitation most likely play a major role for the decadal oscillation formation;; proposed Extended Associate Pattern Analysis to analyse combined observed datasets of sea surface temperature and sea level pressure or geopotential hight at 1000 hPa (GH1000) over the Pacific and related seas.

论证了长江冲淡水向左转向主要由于底形下倾与横向压力梯度滞后相互作用的结果。对温盐阶梯结构的形成过程及物理机制进行了数值模拟与初步探讨。改进了美国科学院院士Wunsch的大洋环流反演法。与胡敦欣院士共同发现了"棉兰老潜流"，这是第一支由中国科学家发现、命名并得到普遍承认的洋流。借助较为简单的生态模式数值模拟了东海的水平与垂直碳通量；胶州湾浮游植物的屏蔽效应可以使底层海水温度在升温季节降低2度，由此推算出其光合作用的效率应小于8%；浮游植物春季水华的生物过程实际上强化了海水层化的物理过程。将统计学降尺度技术应用于日本列岛和我国沿海，实现了海平面长周期变化的模拟与预报。

I tried to deflect the ball off my thigh, but it bounced up into my face.

我试图使这个球转向我的腿，但它却弹到了我的脸上。

If the soil is poor or barren, or the country too small for its inhabitants, then turn to industry and arts, and trade these products for the foods that you need.... On a fertile soil—if you are short of inhabitants—devote all your attention to agriculture, because this multiplies people; banish the arts, because they only serve to depopulate the nation....

如果土壤贫瘠或没有产出，或者国家对居民而言太小，那么就转向工业和艺术，然后将这些产品换成你们需要的食品···在肥沃的土地上——如果你们缺少居民——那么就全身心的投入农业，因为这会繁殖人口；消除艺术，因为它们只会使国家衰落人口减少。

From the beginning of 20 centuries to the 80's, for alleviating the destructibility to economy, politics , and the international environments in the abrupt affairs, the study of crisis management in western has achieved an important breakthrough both in the political science and in the international relation study, and then it gradually enlarges its service from business enterprise to government.

20世纪初期，随着社会分工的强化，工人和资本家之间的矛盾激化，劳资关系的恶化使企业经常碰到一些不可预测的突发性事件，严重影响企业的生存和发展，从20世纪30年代起，理论界开始研究企业危机管理，到20世纪60至80年代，西方危机管理理论在政治学和国际关系领域出现了突破，逐渐由对企业危机管理的研究转向政府危机管理研究。

Relative to section of urban road, traffic characteristic of intersection is morecomplex, because of conflict, crossing, weaving, diffluence and confluence in allkinds of traffic flows.

摘要相对于道路路段而言，交叉口由于车流的转向而引起的各种车流之间的冲突、交叉、交织、分流、合流等行为使交叉口的交通特性比较复杂，交叉口往往成为城市交通畅行与否的关键点。

There is a relative shift in substrate utilization from CHO to fat and a better abdominal discomfortable when consumption of three days L-L meal.

连续三天进食L-L的CHO食物，运动后期底物消耗出现了由糖氧化供能转向脂肪氧化供能；连续三天的L-L的CHO食物，能够使运动员在运动中出现良好的腹部舒适状态。

Essentialist curricula have made the idea turn from empirical to theoretical, thus having led to the establishing of the theoretical formation of disciplinary courses.

要素主义课程使学科课程思想从经验化转向了理论化，确立了学科课程的理论形态。

The reason why this revolution happens lies in that themodern philosophy is self-contradictory:its goal is to raise man's subjectivity,but its essentialist mode of thinking leads to the separating of subject and object,leadsto the losing of man's personality and creativity,and leads to the evaporation ofchiliasm.The contemporary philosophers who have deep experience of this societycertainly cannot bear this kind of existing conditions of man.

对现实有深刻体验的现代哲学家们当然不堪忍受人的此种存在状况，于是，他们便转向非本质主义，意欲以一种生成性思维使人从"众人"当中超拔出来，从那种单调、乏味、冷漠无情的机器世界或科学世界中挣脱出来，回到人原本就生活于其中的，充满了色、声、香和创造的生活世界。

The United States has a state-of-the-art education system. In the past, the possibility of getting a US visa (the document to grant legal entrance and staying in the US) was formidably low, and this is largely the reason that Chinese students turn to other countries.

美国的教育之发达是世人所公认的，过去只是因为去美国的签证率较低，尤其是高中生的签证率很低，使留学生转向去了其它国家。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。