查询词典 convex lens

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

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。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。