查询词典 lens

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。

Pictures at the bottom are beyond the focus of the convex lens.

九龙杯：在杯子里有一个凸透镜，杯子底部的图像位于凸透镜的焦点以外。

Image of a bulb is formed on the screen by a convex lens.

把透镜稍为移向灯箱，要影像重新形成在屏幕上，下列哪些叙述是正确的

A convex lens is used to concentrate rays of light.

凸透镜用于聚集光线。不适合

Long-sightedness can be corrected with a convex lens that ensures light rays fall on the retina and focus accurately.

长期近视可以纠正一个凸透镜，确保光线落在视网膜和重点，准确。

A single convex lens is used to produce an enlarged image.

能够产生放大图像的单个凸透镜。

This can lead to varicose veins in the stomach and esophagus and rectum.

这会导致静脉曲张在胃和食管和直肠。

The spatial distribution dispersion rules of Evodia meliaefolia population and Camellia oleifera population were also analyzed by using the geographic information system software Arcview3.2 assembled with R2V by the way of substituting temporal change with spatial difference.

本文以位于广州市内的白云山风景名胜区森林植被中的芳香植物楝叶吴茱萸群落为研究对象，在调查样地设置50个10 m × 10 m的样方，应用相邻格子法进行调查，对楝叶吴茱萸群落的组成及结构特征、主要树种的分布格局类型进行了分析；采用R2V、Arcview3.2等地理信息系统软件以&空间差异替代时间变化&的方式，对楝叶吴茱萸和油茶种群空间扩散规律进行模拟分析，从而探讨森林景观的物种流功能。