查询词典 parabolic curve

In thrid part we claim that the estimate of the above and of the first initial-boundary value problem for parabolic type equations are still holds under the sec-ond nature structure conditions.

第三节我们说明：第二类自然结构条件下结果也成立，同第一类无多大区别，因而，我们的结果也对第二类自然结构条件下的完全非线性抛物型方程相应的定解问题成立。

Central South University of Technology in Wuhan University of Science and Technology and other institutions of higher learning metallurgical help guide, companies have invested nearly 8 million yuan to develop a highly efficient type of parabolic, the diamond-surface mold brass.

在中南工业大学、武汉冶金科技大学等高等院校帮助指导下，企业先后投资近800万元开发研制出抛物线高效型、曲面钻石型结晶器铜管。

Choosing parabOlic type confiningpOtential,we solve the unperturbed〓equation andobtain the electron wave function.

选择抛物型的约束势，我们通过求解未微扰情况下的薛定格方程，给出了电子的波函数，在此基础上，应用变分方法来考虑电子和表面声子的相互作用。

The "reverse parabolic type" landing technique and "bending striding type" sprint technique have be-come important characteristics of modern sprint techniques. The importance of the views in the "hip power" theory and relaxation techniques for racing performance has been generally recognized by all.

后扒式"着地技术和"屈蹬式"短跑技术已成为现代短跑技术的重要特征；"髋动力学说的观点及放松技术对竞赛成绩的重要性已得到大家普遍的认可。

The invention also provides a method for producing the laser beam focusing integer type parabolic mirror formed in one piece using a rotary type high accuracy machine tool, with features of simple technique, increased capacity of reflector for proofing the high power laser beam and heat-sinking capability, and improved focusing quality of laser beam.

本发明还提供制造所述激光光束聚焦整型抛物面镜的方法，该方法利用回转型高精车机床一次成型加工，制造工艺简单，可提高反射镜耐高功率激光束的能力以及散热能力，改善激光束的聚焦质量。

For the requirement of high efficiency light emitting diode luminaries and the characteristics of automotive headlamp exit beam,based on non-imaging optical theory,a theory model for new type LED parabolic reflector optimal design is established to maximize the utilization of light energy of the reflection cup and to realize the asymmetric light intensity distribution of the headlamp exit beam.

针对当前发光二极管灯具的高效率要求和汽车前照灯出射光束特点，根据非成像光学理论建立了新型LED抛物反射器优化设计的理论模型，实现了反射杯光能利用率的最大化和前灯出射光束的不对称光强分布，进而依据该模型设计了新型反射式LED汽车前照灯光学系统。

The viscosity solutions for partial differential equations of parabolic type havethree different basic definitions.The three definitions are equivalent when the equa-tions are continuous.But for the discontinuous equations,the equivalence of themare still unknown.

因为抛物型方程粘性解有三种基本定义法，它们在方程为连续时相互等价，对于不连续情况，它们间关系尚不明确，因而在本章里，我们特别证明了其中二个定义：定义1，定义2之间的关系。

High parabolic buy low, remember to make money here is the most important!

高抛低买，记得在这里赚钱是最重要的！

For about $20, you can build a very nice polished aluminum parabolic solar cooker.

大概在20美元左右，你可以建立一个很好的抛光铝抛太阳灶。

In chapter 3,we extend the differece format in chapter 2 to two-dimensional changing coefficient parabolic equation.

在第三章，我们将第二章的差分格式推广到二维变系数抛物型方程中去。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。