片语

the shape of concave mirror凹面镜形状

diverging lens分散透镜；凹透镜

a concave mirror凹镜

minus lens凹透镜

plano-concave mirror平凹双面反光镜

concave spherical mirror[光] 凹球面镜

concave mirror focus凹面镜聚焦

concave reflecting mirror凹面反射镜

cylindrical concave mirror柱面凹镜；柱形凹镜

concave mirror reflector凹面反光镜

concave spherical reflecting mirror凹球面反射镜

英汉例句

• light beams scatter through refraction of concave mirror, and can not form true image, hence we can not measure the focus of concave mirror directly.

  光束经凹透镜折射后发散，不能形成实像，因此不能直接测量凹透镜的焦距。

• the said lens is perpendicular to output beam. each concave mirror possesses identical radius of curvature.

  每小块方形的镀有全反膜的凹面镜具有相同的曲率半径。

• observation eyepiece consists of concave mirror and a separate gate is formed, in the eyepiece can be seen at the same time the two semicircle color, its left for the sample color.

  观察目镜由凹镜和分隔栅组成，在目镜中可同时看到二个半圆色，其左边的为试样颜色。

• a concave mirror creates an image from this light using a design pioneered in the 17th century, by sir isaac newton.

  早在17世纪，艾萨克。牛顿就开创性的利用这个光，让凹透镜产生了一个图像。

• the paper describes a high resolution, high accuracy and simple method of measuring dymamic angle by means of optical self -collimating of concave mirror curvature center.

  用四球面反射镜曲率中心光学自準方法，通过测量自準像位移来计算弯沉角，是一种高分辨率、準确、简单地测量方法。