研究人员已经证实，当人们动脑筋时，大脑中会发生生化变化，使其在注意力和记忆等认知区域更有效地发挥作用。
Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act more effectively in cognitive areas such as attention and memory.
在过去二十年中，由于人群对疾病感染的免疫力下降、砍伐森林、城市化、人口流动和气候变化等因素的影响，黄热病病例数呈增加趋势。
The number of yellow fever cases has increased over the past two decades due to declining population immunity to infection, deforestation, urbanization, population movements and climate change.
我们确信，当人们用脑时没，在记忆力和注意力等认知区域中就会发生巨大的化学变化。
It is established that when people are mentally engaged, great chemical changes will take place in such cognitive areas as memory and focus ability.
研究了膨胀土加入石灰改性后，其无荷膨胀率、膨胀力、无侧限抗压强度等指标的变化规律。
Studing on the changing rule of lime modification expansive soil, such as free swelling ratio, swelling strength, non-side limitation compressive strength.
并从农作物生产力和产量、种植制度、区域农业生产及生产费用等几方面分析了气候变化对中国持续农业的影响。
The impact of climatic change on sustained agriculture in China is analysed according to the crop productivity and yield, cropping system, regional agricultural production and production cost.
主要就曝光能量，分辨力改善情况，焦深变化等与传统情况作了比较。
Exposure energy, improvement of resolution and depth of focus are compared with that of conventional condition.
本文给出了U型钢可缩性支架的缩动条件，讨论了卡缆预紧力对支架抗缩动能力的影响以及支架在缩动过程中抗缩动能力的变化等问题。
The paper gives yielding conditions and discusses the influence of pre-tension of clamps on yieldable capacity of the U-steel and change of yieldable capacity in the process of yielding.
由于近岸波浪动力主要受地形等因素的影响变化剧烈，尤其伴随着波浪破碎，增加了直墙上波浪力确定的困难。
Determination of wave forces on a vertical wall is difficulty owing to violent change of near-shore wave dynamics by topographic and other factors and to subsequent wave breaking.
分别改变路面、速度、预张紧力等相关影响因素做多组计算，对比分析了履带动态张紧力的变化情况。
The vibration of dynamic track tension is investigated by multibody tracked vehicle model in different road conditions, velocities and pre-tensions.
观察脾虚证模型小鼠肝、脾、肾、胸腺等脏器组织形态学的变化及强肌健力口服液对其修复作用。
To observe the morphologic changes of organs in mice with spleen deficiency and the effect of Qiangji Jianli Oral Liquid(QJOL).
观察两组患者心脏电生理指标、血流动力学恢复、正性肌力药物用量、心肌细胞超微结构和心肌酶浓度变化等。
Cardiac electrophysiologic data, recovery of hemodynamics, inotropic medicine dosage, myocardial ultrastructural changes and concentration of myocardial enzymes were assessed.
对V形密封在整个工作寿命中，轴向挤压应力、轴向压力分布、摩擦力等特性变化进行实验研究。
The variation laws of wearing character on V - packing are studied in the whole working life. The wearing character include the friction force, axial extrusion stress and axial pressure distribution.
利用商业化软件DEFORM - 2d，对所建立的模型进行了有限元分析，得到了切屑成形、温度分布、切削力变化以及残余应力等结果。
The above FEM model is analyzed by commercial software DEFORM-2D, and some results including the chip formation, temperature distribution, cutting force variable and residual stress were obtained.
根据数值模拟结果，研究了不同锻造工艺参数(变形温度、变形速率、压下量等)对叶片锻造过程中的变形力、应力和应变变化的影响规律。
According to the simulation results, we studied the effect of the process parameters, including the deformation temperature, initial strain rate and stroke, on the load, equivalent st...
陈艳青、陈燮霞等在发力阶段膝角变化比较大，髋角变化比较小，躯干角变化也比较小；
Chen Yanqing, Chen Xiexia and so on is sending the strength stage knee angular variation quite to be big, the hip angular variation quite is small, the torso angular variation quite is also small;
陈艳青、陈燮霞等在发力阶段膝角变化比较大，髋角变化比较小，躯干角变化也比较小；
Chen Yanqing, Chen Xiexia and so on is sending the strength stage knee angular variation quite to be big, the hip angular variation quite is small, the torso angular variation quite is also small;
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