This paper analyses the density of exercise and the load of sports in the course of PE teaching in Tong Jiaqiao Middle school by applying the information and the method of comparative analysis.
运用文献资料和比较分析等方法，调查分析了重庆童家桥中学教学过程中的体育课练习密度和运动负荷。
It shows using quantitative exercise load and strengthening density and time of exercise can help college students master movements and have an active effect for study.
实验结果表明，采用定量练习负荷，加强练习的密度与练习时间，对学习效果产生积极影响，有助于学生掌握动作。
With increase in electronic package density, the reliability of a board-level package under drop impact load becomes a key issue.
随着微电子封装密度的提高，板级封装在跌落冲击载荷下的可靠性成为人们关注的焦点。
And based on the fire load density of the combustible and combustibility of decoration material, calculate the value of fire increasing modulus.
根据可燃物的火灾荷载密度和装饰材料的燃烧性能确定火灾增长系数的值。
The matrix of power spectral density function of fluctuating wind load is established first.
首先建立了脉动风荷载的功率谱密度函数矩阵。
As a result, some parameters of the key points have been got including the power spectrum density (PSD), the response variance, the gust response factor for load and displacement.
生成了若干关键点的功率谱密度(PSD)和响应的均方值，以及荷载风振系数、位移风振系数。
This paper also analysis kinds of ways of connection for the transmission and distribution, and present the optimized planning for the high density load area.
同时对城市输电网、配电网的多种接线方式进行了分析比较，并提出了对于城市高负荷密度地区电网的优化接线方式。
The results show that acoustic response feature of random vibration depends on the acoustic response function and the spectral density function of the stimulating load.
理论推导和实例结果表明，随机振动的声学响应特性取决于声学频率响应函数和激励谱密度函数。
It showed that space dimension could have a lot of influence on the safety evacuation performance of buildings based on the same crowd density load and the same initial expected velocity.
在同样的人员负荷、人员密度和人员初始期望速度情况下，空间几何尺寸对人员流动安全性有一定的影响。
It finds it common that the density of exercise and the load of sport in the two classes investigated is lower than the common level at home and abroad.
结果表明，与国内外一般要求相比较，两个班均存在练习密度和运动负荷偏低的情况。
The paper hence suggested that to achieve transportation task for year 2000, China rail way should actively increase in train density while raising traction load of trains.
提出为完成2000年的运输任务，今后在大力增加列车牵引重量的同时，还应积极加大列车密度。
Initially set velocity, density of traffic flow, traffic volume of service and the rate of traffic load as the measurement indicators.
对航道服务水平进行定义，并初步确定速度、交通流密度、服务交通量和交通量负荷比等四项度量指标。
The equations of axial momentum and radial momentum are made during the presented inflation of parachute, and the parachute opening load in low atmospheric density is studied on the basis of them.
文章根据建立的降落伞充气过程中轴向和径向动量方程，研究了低密度大气中降落伞的开伞动载。
The paper expounds the transportation load of China railways, and reviewed the position and role of increasing train operation density in raising transport capacity.
分析了我国铁路的负荷情况，回顾了加大列车密度在提高铁路运输能力中的地位和作用。
It is clear in our county that the traveling density of the railway is very high in the world and it is hard to increase the traveling speed now compared with the huge potentiality of vehicle load.
现阶段我国铁路的行车密度已经居于世界前列，行车速度提高的余地又不大，相比之下提高列车重量有着很大的潜力。
This model took the number of paths, the way of route selecting and the density of the network nodes into account and could analyse or compute the load in different network conditions.
该模型考虑到多路径的数目、路由的选取方法以及网络中节点的密度等条件，能够对不同网络条件下的负载进行较好的分析与理论计算。
The influence of motor type to the thermal load and the effective material peak-value power density is analyzed, and the dimensions of the motor are selected.
通过对电动机结构型式与热负荷、有效材料峰值功率密度的分析，确定了电动机的外形尺寸。
The greater the dry density is, the greater the load bearing area of soil particles is, and the greater the strength of frozen soil will be.
干容重越大，土骨架能够承受荷载的有效面积越大，冻土的强度也越大。
Thereby, the probability density function and characteristic number of structural load effects can be obtained.
由此，可确定结构荷载效应分布概型及其数字特征。
An analysis of a type of angular contact ball bearing under given input power spectrum density is performed. The result demonstrate that the bearing is safe in any load direction.
以某种角接触球轴承为例，验证了其在给定输入功率谱密度下任意方向加载都安全。
Even though these rivers carry a significant sediment load in suspension, the density of the sediment-laden water is rarely at or above the density of seawater.
尽管这些河流带着大量悬浮的颗粒，这带有沉淀物的水的密度仍仅仅达到或者低于海水的密度。
OBJECTIVE: To explore the influence and site-effect of different load treadmill exercises on female rat's various bone mineral density (BMD).
目的：探讨不同负荷跑台运动对雌性大鼠不同部位骨骼骨密度的影响及其位点效应。
Simulation results show that EB-TDMA has a better performance in terms of packet latency and energy consumption for burst traffic application with high-density deployment and high traffic load.
仿真结果表明，对节点密集时的突发业务，该协议在时延和节能方面都具有良好的性能。
The process load is different because of the sludge density and the sludge type and different.
处理量因污泥浓度及污泥种类不同而异。
The process load is different because of the sludge density and the sludge type and different.
处理量因污泥浓度及污泥种类不同而异。
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