上海博物館展出一件“透光鏡”，它是西漢時(shí)期的珍品，直徑為11.5厘米。這面銅鏡與普通銅鏡一樣，背面有圖案，還有銘文。

　　In Shanghai Museum, one finds a treasure of the Western Han period, the "penetrative bronze mirror", measuring 11. 5 cm in diameter. Like ordinary bronze mirrors, it bears patterns and inscriptions on the back.

　　奇怪的是，當(dāng)一束光線照到鏡面，反射投影在墻壁上，墻上的光亮圈內(nèi)竟出現(xiàn)銅鏡背面的圖案和文字，好像是從鏡背“透”過來的，故稱“透光鏡”。

　　But what amazes people is that when a bundle of rays is projected onto the surface of the mirror, which, in turn, reflects the light onto the wall, the patterns and inscriptions on the backside are shown in the ring of the light, as if they had penetrated the whole thickness of the mirror. Hence the name of the mirror.

　　對(duì)于這種現(xiàn)象，在過去很長(zhǎng)的時(shí)間里，科學(xué)家們都感到驚奇，人們把它稱作“魔鏡”。

　　For a long time in the past, even scientists were so puzzled at the phenomenon that it was called a "magic mirror."

　　今天，我國(guó)已可仿制出售，作為旅游紀(jì)念品，很受外國(guó)游客的歡迎。我國(guó)古代常把銅鏡當(dāng)作隨葬品。

　　Today, reproductions of this mirror are being made and sold as souvenirs and they appeal very much to tourists. In ancient times, bronze mirrors were very often used as sacrificial objects.

　　在古墓中，往往發(fā)現(xiàn)銅鏡放置在死者的頭頂或胸側(cè)。有時(shí)把銅鏡和木梳一起放在漆匣內(nèi)或小荷包里。

　　In the ancient tombs, one can always expect to find bronze mirrors placed on top of the head or beside the chest of the dead. Sometimes, bronze mirrors and combs were put together in lacquer boxes or small pouches.

　　在發(fā)掘古墓時(shí)，還發(fā)現(xiàn)有的銅鏡放在墓頂上方，據(jù)說這是為了“辟邪”和“降妖”。(245字)

　　In unearthing ancient tombs, bronze mirrors were sometimes discovered on the inner topsides, in order to keep away evil spirits and subdue demons, so it was said.