1.
Disappearing and Returning: To Commemorate the Great Author of Zhou Wen from a Historical Perspective;
失踪与回归——历史凹凸镜下的作家周文
2.
meniscus (shaped) lens
凹凸透镜，弯月形透镜
3.
Having greater curvature on the convex side than on the concave side.Used of a lens.
凸凹的凸面比凹面曲度更大的。用来指透镜
4.
Having greater curvature on the concave side than on the convex side.Used of a lens.
凹凸的凹面曲率大于凸面曲率的。用于指透镜
5.
Light reflected from the surface of the mirror, instead of passing through a curved glass lens.
光线受镜面的反射，而不是穿过凹凸的玻璃镜头。
6.
Just as a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩
7.
a concave lens [mirror]
凹透镜 [凹面镜]
8.
Convex on one side and concave on the other.
凸凹的一面凸一面凹的
9.
A New Method to Measure Optics Parameter of Plano-convex Lens and Plane-concave Lens
一种测定平凸、平凹透镜光学参量的新方法
10.
Just as a double convex lens enlarges, so a double concave lens reduces
正象双凸透镜可以放大那样，双凹透镜也可以缩小。
11.
This is the earliest pinhole image formation experiment and the earliest cognition of rectilinear propagation.
八条中的后三条叙述了反射（平面、凹面、凸面）镜成像现象。
12.
colts tail
【气】凹凸云，卷云
13.
A planoconvex lens used to concentrate light.
凸透镜用来聚光的凸镜
14.
concave on one side and convex on the other with the concavity being greater than the convexity.
一边凹一边凸，而且凹度比凸度大。
15.
0 - Flat;1 - Raised;2 - Inset;3 - Raised Light;4 - Inset Light
-平面；1-凸起；2-凹入；3-凸起光；4-凹入光
16.
convex on one side and concave on the other with the convexity being greater than the concavity.
一边凸一边凹，而且凸度比凹度大。
17.
Metal sheets that have raised sections will work very well.
凹凸不平的金属片最好。
18.
tactile surface
有凹凸纹胶条的路面