查询词典 angular aperture

Base on the fact that a hard-edge aperture function can be expanded into a finite sum of complex Gaussian functions, the approximate analytical expressions for the propagation characters of Hermite-Guassian beams passing through double rectangular apertured are derived. The approximate analysis uses Collins formula. At last, Matlab illustrates some numerical examples.

基于硬边孔函数能拓展成一组有限复高斯函数的和，研究厄米－高斯光束通过双矩孔的传输特性，用Collins公式分析，用Matlab进行一些数值模拟。

The propagation equations for oblique and off-axial Gaussian beams passing through cat-eye optical lens are deduced by using the theory of matrix optics and expanding the aperture function into a finite sum of complex Gaussian functions.

运用矩阵光学理论以及将硬边光阑窗口函数展开为有限个复高斯函数之和的方法，进一步推导了倾斜离轴高斯光束通过猫眼光学镜头的解析传输公式，通过数值计算分析得到了倾斜系数和离轴量对猫眼效应反射光光强分布的影响规律。

He kept his word; twice a day he cast out, through the barred aperture , the provisions his jailer brought him--at first gayly, then with deliberation, and at last with regret

他按设想要做的那样去做了，把狱卒每天给他送来的两次食物从钉着栅栏的窗洞里倒出去，最初很高兴，后来就有点犹豫，最后则很悔恨。

Study of finite aperture effect on lens made of LHM by geometrical Optics.

光波在左右手系材料界面处的传输特性。

A lid or flap covering an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap covering an aperture, such as the gill cover in some fishes or the horny shell cover in snail s or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap cover in g an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap cover ing an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

Four types of arrays of single carbon nanotubes, with field emitter diameters of 1μm, 0.6μm, 0.4μm and 0.2μm, were fabricated, respectively, by combining conventional ultraviolet lithography and the recently-developed technique of "aperture reduction via varying glancing angle".

通过普通的紫外光刻工艺，结合"变倾角缩口"新技术，研制了不同发射单元尺寸的碳纳米管阵列阴极。扫瞄电镜分析表明，随着缩口尺寸的依次减小（从0.6μm到0.4μm，最后到0.2μm），发射单元内CNTs的根数也不断减少。

The results of varying the amplitude of aperture of the glottis while playing the note A4 are shown.

14日，其结果不同幅度的光圈声门打A4规定的说明显示。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。