查询词典 planar developable surface

The dynamic properties of the nonlinear planar cantilever and the nonlinear nonplanar cantilever are investigated, The main contents are as follows.The equation of motion for the planar cantilever is obtained by using the theory of elastic mechanics.

本文研究了非线性平面运动悬臂梁和非线性非平面运动悬臂梁二种模型的动力学特性，主要研究内容有以下几方面。

The monoamines are almost planar; one bond angle in each diamine and triamine is planar, other bond angles remain.

激发态单胺几乎呈平面状；对于双胺和三胺，一个氮原子键角度呈直线型，其它氮原子键角度几乎没有变化。

Axial multi-planar reconstruction of the stents and curved-planar reconstruction through the stents were evaluated for image quality on a 5-point scale (1=excellent,5=uninterpretable) and lumen diameter.

采用5分制计分法评价支架的轴位多平面重建图像及通过支架内腔中心的曲面重建图像质量，同时测量支架内管腔直径。

The third chapter contains my research work, which mainly focuses on Planar Photonic Bandgap. The idea of how to miniaturize Planar Photonic Bandgap by using spiral structures is proposed. Finally, by using ununiform method, the bandwidth, which is decreased due to miniaturization, are enlarged obviously.

首先介绍了平面光子晶体在微带线结构中的几种应用；然后阐述了我们在平面光子晶体小型化设计中所做的一些工作，包括仿真方案的选择，设计方案的制定与比较，以及与传统结构的比较；最后介绍了采用渐变周期结构对小型化所带来的带宽减少问题所做的改善工作。

Automatic programming and machining simulation have designed in the CNC system. Inputting design parameters of cam mechanism through the interface of programming system in automatic programming, the special program of machining planar cam is generated automatically. Machining simulation is to simulate the machining process of grinding wheel and planar cam by using animation method, so as to verify the validity of NC code.

自动编程能够通过用户界面输入凸轮机构的设计参数，生成只适合该机床的特定数控代码；加工仿真用动画方式模拟砂轮和平面凸轮的磨削过程，用于验证数控加工程序的正确性。

In the meantime the radius of curvative of the planar cam profile should be also tested in the synthesis of the planar cam mechanism.

另外，在平面凸轮机构的综合中，一般也要验算凸轮轮廓曲线的曲率半径。

But there is lack of tuition in planar designing and difficulty is brought out for many complicated parts in planar environment. Part model can be produced and seen in three-dimensional designing which can reflect the idea of the devisers clearly and great convenience is brought for part designing.

然而，二维设计缺乏直观性，对许多复杂形状制件的表达也很困难，三维设计可以生成和显示零件实体，形象地表达模具设计方案和设计结果，便于对零件形状和装配关系的观察与审核，能准确清晰地反映出设计者的思想，给产品的结构设计带来很大地方便。

On the basis of equivalent planar pitch,the tooth profile of the equivalent gear was gotten through simulation when the pitch curve of the gear shaper rolled on the equivalent planar pitch curve.

以平面当量节曲线为基础，通过确定插齿刀的节圆沿平面当量节曲线做纯滚动时插齿刀上各点的运动轨迹，模拟了插齿加工包络出当量齿轮的齿形过程，将非圆锥齿轮的设计转化为平面齿轮的设计，简化了非圆锥齿轮的设计。

Intersection lineations in rocks, as they are the product of the intersection of two planar structures, are named according to the two planar structures from which they are formed.

相交线岩石中，因为它们的产品的交叉两个平面结构，被命名为根据两个平面结构，从他们所形成的。

Survey gain through this project, analysed use double base the RTK measurement technique of station double sampling, the system that can eliminate error of fiducial station coordinate effectively to nod planar coordinate to sampling is affected, disappear weak troposphere changes to be affected to what RTK tall Cheng measures randomly, make RTK planar coordinate measures the need that one class lead measures contented city thereby, make RTK tall Cheng is measured be close to or achieve the 4 precision that wait for leveling.

通过该项目测量成果，分析了采用双基站双采样的RTK测量方法，可有效消除基准站坐标误差对采样点平面坐标的系统影响，消弱对流层随机变化对RTK高程测量的影响，从而使RTK平面坐标测量满足城市一级导线测量的需要，使RTK高程测量接近或达到四等水准测量的精度。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。