查询词典 parabolic

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。

This method can be used to the detection and optical adjustment of parabolic mirrors.

该方法可用于抛物面反射镜检验，也可用于抛物面反射镜的调校工艺中。

For all coatings oxidation followed a parabolic law up to 400 h.

在400 h内，各涂层的氧化均遵循抛物线规律。

Firstly,we study the controllability of two classes of important quasilinear parabolic equations.

首先，我们讨论了两类重要的拟线性抛物方程的能控性。

A move to the right of the parabolic trend line is an exit signal.

运行到抛物线形的趋势线右边是该趋势结束的信号。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。