查询词典 approximation methods in physics

Based on the variable separation method, the governing equations for the film thickness problem have been solved. A reasonable consistent condition of the momentum equations has been found and solved. Based on the methods ofmathematical physics, series expansion solution of the velocity filed in the film has been derived. A boundary condition at the boundary of the spray area was given and the velocity slip phenomenon has been considered.

基于电子器件喷雾冷却技术的研究现状和研究热点，本文对喷雾在热源表面形成的冲击液膜流动及厚度模型、基于CHF(Critical Heat Flux，临界热流密度)准则的倾斜喷射喷嘴轨迹、喷嘴距热源换热最优时的高度、倾斜喷射实验以及针对动态喷射的电磁驱动器件的吸合问题等方面进行了研究：针对圆锥形轴对称喷雾冷却系统，在对喷雾区域进行划分的基础上，引入滑流边界条件，在提出圆锥状喷雾假设的基础上，建立了喷雾区域雾滴密度连续介质等效模型。

According to the current middle school physics teaching situation and new curriculum standards, the thesis emphasizes the importance of physical thinking methods, inquiry experiment ability, teaching tool applications and the ability related to real life during the classroom instruction of the curvilinear motion.

对高三和高一学生学习"曲线运动"内容后的学习效果进行了测试和分析，在此基础上确定出该部分内容的核心知识及难点知识，探索了学习者学习过程中存在学习困难的原因，并尝试提出了解决问题的策略。

In combination with theory of Traditional Chinese Meridians and Vessels, modern electrobiology, physics, the method of lowering blood pressure dropping automatically release the high bioelectric currents in ear back channel at regular time and in fixed quantity by directly utilizing bioelectronics of body itself and through natural Therapeutical methods.

健康宝'数码物理治疗仪的降压功能是根据中医经络学理论，结合现代生物电学、物理学原理，以自然疗法刺激患者耳背的降压沟穴、通透'神门穴'，来调控大脑中枢神经指挥交感神经和迷走神经平衡工作，从而达到舒经活血、平？

It explains in detail how the methods of elicitation, discussion, and induction are to be used in the physics teaching.

本文根据心理学原理论述了改革初中物理教学的必要性，并对"启发、讨论、归纳法"在物理教学中的应用作了详细的阐述。

Takingthe contact stress, bend stress stiffness and temperature stress as thecondition, taking the weight of the kiln tyre as optimization aim function, theredia and the width of the tyre are optimized General optimize methods justconsider the affecting of the parameters to aim function, but in fact,structural parameters(such as structure dimension, interval and so on),physics and dynamics (damp factor, conduct factor, friction factor material'selastic module strength limits and so on), which would be changed afterused.

一般的优化方法，仅仅考虑了参数对其目标函数的影响，而实际情况下有些参数是变化的，产品的结构参数、物理和力学参数如阻尼系数、传导系数、磨擦系数、材料的弹性模量和强度极限等的设计值与制造后和使用中的实际值会有差异，这种差异称为设计变量和噪声因素的变差。

Fourier analysis consists of Fourier series which can solve limited one-dimensional space Heat-conduction question and Fourier integral which can solve infinite one-dimensional space Heat-conduction question. This is more systematic compared with the other methods, and embodies corresponding beauty of Mathematics to Physics.

傅里叶分析包括傅里叶级数和傅里叶积分，用傅里叶级数法解决有界细杆的热传导问题，用含参数的傅里叶变换法解决无界细杆的热传导问题，比其它方法更系统，体现出一种数学与物理对应的美感。

The natural relationship of Gravitational Constant is also concluded:, In which from definition of must basic unit of current intensityor coulomb in classical physics, the measuring principle of unit charge and the gas kinetics are combined, and the formula of relative theory of mass is used, by the use of the methods of logical inference with concludiung synthesis.

运用逻辑推理和归纳综合相结合的方法，从经典物理学的源头--电流强度单位的定义和电量单位的定义出发，结合元电荷测定原理、气体分子动理论以及相对论质量公式，导出了万有引力常量G的关系式：，解释了G的测量值的大小、变化及其范围，消减了一个物理基本常数。

With the methods of documentation, observe and physics statistics, the paper studies hit skills and stroke amounts of each round. And the paper tries to analysizing the change of fields of serve falling to the ground, the stroke amounts of each round, utilization ratio of each hit skill and the effect of return of service and handle skill of the third stroke in world top men's doubles nowdays after implement of new rule.

本研究采用文献资料法、观察法、数理统计法等对运动员的击球技术和各回合的拍数情况进行了研究，试图分析新规则实施后，当今世界顶尖男子双打选手的发球落地区变化情况、各回合的拍数情况、各击球技术的使用率以及接发球效果与处理第三拍技术。

The physics and bionics methods had little effect because of the habituation.

机场附近的飞鸟严重威胁着飞机的飞行安全，为此，世界各地出现了种类繁多的驱鸟方法，如物理学和仿生学方法等，但效果不佳。

School covers an area of 20066.6 square meters, 15,000 square meters of construction area, Sam Tung buildings, two dormitory, a laboratory building, two multi-purpose teaching the Office, two large computer room, Health Physics and Chemistry Laboratory equipment The two rooms, all equipped with the Office of Teaching and Research Group and a microcomputer to realize the broadband Internet access to a network of teachers to prepare lessons, curriculum resources, information technology, modern teaching methods.

学校占地面积20066.6平方米，建筑使用面积15000平方米，有教学楼三栋、宿舍楼两栋，实验楼一栋，多功能教学厅两个，大型微机室两个，理化生实验室、仪器室各两个，各办公室和教研组全部配备了微机，实现了宽带上网，达到了教师备课网络化，课程资源信息化，教学手段现代化。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我