汉英词典
Chinese-English Dictionary
MEANING OF 凸透鏡
凸透鏡 (凸透镜)
convex lens
称会聚透镜,通称放大镜。透镜的一种。中央比四周厚,平行光线透过以后,向轴线的方向折射聚集于一点上。物体放在焦点以内,由另一侧看去就得一个放大的虚像。阳光通过后聚集成一个温度很高的光点,火柴和薄纸能被烧着。凸透镜可做各种光学用具的镜头。
tòu () jìng
EXAMPLE SENTENCES

凸透镜用于聚集光线。

To tie or group together.

平面镜、凸透镜和凹透镜。

Plane mirrors, convex lens and concave lens.

他用一面凸透镜把阳光在纸上聚成焦点。

He focused the sun's ray on a piece of paper with a burning-glass.

正象双凸透镜可以放大那样,双凹透镜也可以缩小。

Just as a double convex lens enlarges so a double concave lens reduces.

复合显微镜包括两个短焦距凸透镜,即位于镜筒两端的物镜和目镜。

The compound microscope consists of two convex lenses with short focal length, the objective and eyepiece lenses, fitted at opposite ends of a tube.

在单色光、小物条件下,球差是引起薄凸透镜焦距的测量误差的主要因素。

Under conditions of monochromatic light and a small object, the spherical aberration was the main factor which led to measuring error of focus of thin convex lens.

她们当然是看到了。我觉到她们的眼睛像凸透镜那样对准了我烧灼的皮肤。

Of course they did; for I felt their eyes directed like burning-glasses against my scorched skin.

普通物理实验中,牛顿环干涉实验只考虑在凸透镜与平面玻璃之间形成空气薄膜下的干涉现象。

In interference experiments with Newton's ring, considered only is the interference of the air film formed between the convex lens and the plain glass.

目的:观察凹透镜和凸透镜对豚鼠眼球生长和屈光变化的影响,建立透镜诱导型屈光不正动物模型。

Objective: to observe the effect of concave and convex on growing and the refractive developing of guinea pig eyes and to establish lens-induced animal model of myopia or hyperopia.

该方法借助一个焦距较长的凸透镜与被测凹透镜组成无焦系统,可以使准直管出射光束的张角发生改变;

Firstly, a telescope system is made up with a concave lens and a long-focus convex lens, by which the angle of the parallel beam from the collimator can be change.