折射

With aperture expanded as the sum of finite complex Gaussian terms, a more practical approximate analytical solution of fractional Fourier transform of Gaussian beam in an apertured paraboloid refracting system is obtained and also numerical investigation is presented.

通过将孔径函数展开为有限项复高斯函数之和，得到了高斯光束在受孔径约束的抛物面折射系统中分数傅里叶变换较符合实际的近似解析表达式，并进行了数值模拟。

Currently in initial production, the Off-Axis Viewing Deviceis a small viewing unit that mates with a weapon′s existing receive-mounted optical sight and provides an image of the target transmitted through the scope and reflected 50°to the line-of-sight back to the firer.

目前，初期生产的离轴式观察装置是一种与装在支座上的光学瞄准具相配的小型观察器，它能将透过物镜的目标图像折射50°到视线方向，再提供给射手。

From the different fates of these towns, we can pry about the flection during the urban modernization.

四大名镇在近代的分化和不同命运，折射出城市现代化转型的曲折。

The lens telescope, or refractor, was vastly improved when it became possible to manufacture high-quality lenses made from flint glass

透镜望远镜，或称折射望远镜，在人们能够制造出高质量的火石玻璃透镜以后得到了很大的改进。

The lens telescope, or refractor, was vastly improved when it became possible to manufacture high-quality lens es made from flint glass

透镜望远镜，或称折射望远镜，在人们能够制造出高质量的火石玻璃透镜以后得到了很大的改进。

Lead glass contains typically 18–35 mol % lead oxide, while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO.[2] Lead glass is desirable due to its decorative properties.

中国地质大学珠宝检测中心副主任杨明星："施华洛士奇主要是一个含铅的玻璃，因为让我们看上去五颜面六色，非常的漂亮，它主要就是含一定量的铅，所以它的色彩非常地强，那么它做成各种晶体之后，光线一折射过来，就五颜面六色地非常漂亮。"

Glass, Heaviest Flint 1.890

你能在折射方面控制玻璃表面的光滑度。

The refraction, reflection and propagation of the acoustic wave in a rod are studied quantitatively when a line-focused probe is employed in an axial scanning in immersion testing. The shape and position of the first and second focal line of the probe in the cylinder are calculated.

定量研究了采用线聚焦探头、液浸法、轴向扫描探伤时，棒材中声波的折射、反射和传播规律，计算得到了工件中的一次焦线和二次焦线的形状和位置。

The new folding door fittings are smooth and light. The coffee-color acrylic sheet reflects enamel light and sheds romance, mystery and happiness.

新型折叠门配件顺滑、轻盈，咖啡色亚克力折射出点点蓝光，洒下一片浪漫、欢愉。

It is infatuated with and full of criticism to conventional culture. It refuses and approves modern culture. All those profound multi-culture perspectives is a mirror of the author's namely the perceiver's huge spirit dilemma and inextricable foreordination of reality and culture . They have wrote an formal sorrowful page for the literature of Chinese 20th century

乡土文学在对传统文化的留恋与批判，对现代文明的拒斥与认同等多重叙述中，折射着20世纪乡土作家们作为叙述主体巨大的精神困境和无法摆脱的现实和文化宿命，他们为中国20世纪文学书写了悲怆的一笔

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。