摘要： Abstract： 透镜通常是由透明物质（如玻璃、水晶等）制成的光学元件。常见的透镜有凸透镜和凹透镜两种。常见的透镜有凸透镜和凹透镜两种。凸透镜具有会聚光线的作用，所以也叫“会聚透镜”或“正透镜”。 Lenses are usually made of transparent substance such as glass， crystal， for optical Convex lens and concave lens are two tpyes of familiar A beam throgh convex lens will be converged (or focused)， so the lens is also called a converging or positive 在我国西汉时期成书的《淮南万毕术》中，有世界上最早的“冰透镜”记载。其后，晋朝张华的《博物志》中也有类似记载。古代的冰透镜是如何“削”出来的？历史上没有定论。 The earliest "ice lens" in the world was written in the book of "Huai Nan Wan Bi Shu" in the Western Han D After that， similar records can also be found in the book of "Naturalis Historia" which was written by Hua Zhang of the Jin D As for the conclusion of how did the ice lens to be "cut out" has not yet found in the 笔者通过冰透镜的制作和实验，对《淮南万毕术》中的记载进行验证，并对其中的一些问题作初步探讨。 Through experiment and making ice lenses， the author tried to test and verify what was written in the book of "Huai Nan Wan Bi Shu" and put forward preliminary dicussion on some concerning 关键词：Key words 中国古代，Ancient China 淮南万毕术，The Book of "Huai Nan Wan Bi Shu" 冰透镜，Ice lens 取火。 Fire Starting ------------------------请详阅译文，有问题联系------------------------
自洁净玻璃 Self-cleaning Glass纳米材料 nano material光催化 light-catalyse 性能 capabilitySelf-cleaning Glass is machininged by Nano Technology，which is applied to light-catalyse T This text gives the synthetical expatiation briefly from such factors as effect principle，research method，and capability
Abstract: The optical lens is the optical elements being made from transparent matter (if glass ， crystal wait) The common optical lens has the two kinds convex lens and concave The convex lens has convergency light effect ， therefore also， calls "the convergency optical lens " or "rectifies an optical lens " Ten thousand Bi of Cheng Shu 's "Huai Nan City skills " are middle in our country Western Han Dynasty period ， the earliest "ice optical lens " records that on having the Middle of Jin Chao Zhang China can't have similar afterwards， record How is the ancient ice optical lens to "chop" out? Do not have final conclusion in The author passes ice optical lens fabrication and experiment ， recording "ten thousand Huai Nan City Bi skills " carries out verification on to hitting the target ， problem does and first step investigation and discussion to a few among Keywords: Chinese ancient times ， ten thousand Huai Nan City Bi skills ， ice optical lenses， fetch
