查询词典 lens

Objective To investigate the effect of lower degree convex lens on preventing myopia of primary school students.

目的 探讨低度凸透镜预防小学生视近的效果。方法采用随机分组的方法将男女各半的 16 0 0名小学三年级正视眼学生分为实验组和对照组。

The hardware structure platform of this system consists of light source Super LED, Web Cameras and Convex Lens.

本系统之硬体架构平台是使用光源、网摄影机和凸透镜所组成。

Two kinds of convex lens which make parallel light rays converge to the focal point are given.

本文给出两种能使平行光严格聚焦于一点的凸透镜。

The image of a bulb filament is formed on a screen by a convex lens.

若透镜的上半部份用一块布遮盖起来，下面何者是对的

In general, two faces of a convex lens are parts of a sphere.

张清通常凸透镜的曲面是球面。

Through measuring curvature radius of the thin convex lens, we can measure refractive index of the liquid.

用液体和薄凸透镜可以组成液体透镜组，通过测量薄凸透镜的曲率半径，达到测定液体折射率的目的。

Large convex lens produces image that is viewed through the ''.

通过目镜观察物体图像的大的凸透镜。

Large convex lens produces image that is viewed through the eyepiece .

通过目镜观察物体图像的大的凸透镜。

As shown, a thin convex lens with focus length 10 cm and a concave

如上图所示，一焦距为10 cm的薄凸透镜和一半径为20 cm的凹球面反射镜共轴。P点球心

The differences of optical properties between the convex refractive microlens arrays and the conventional convex thin lens are derived.

给出了凸型折射微透镜与传统的凸形薄透镜在常规光学特性方面的差异。

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。