例句與造句

1. Just as a double convex lens enlarges , so a double concave lens reduces
   正象雙凸透鏡可以放大那樣，雙凹透鏡也可以縮小。
2. This setup , known as a conoscope , is shown in figure 14 . 2 and consists of two stress - free plano - convex lenses a and b
   此裝置稱為錐光鏡，如圖14 2所示，它由a和b兩個(gè)無(wú)應(yīng)力平凸透鏡組成。
3. However , spectacles are made of thick convex lens . skills and precautions are needed to wear contact lens properly . both are not suitable for the elderly
   不過(guò)，這些眼鏡片有相當(dāng)?shù)暮穸龋浯麟[形眼鏡亦需要一些特別技巧，對(duì)于年紀(jì)較大的患者未必適合。
4. This setup , known as a conoscope , is shown in figure 14 . 2 and consists of two stress - free plane - convex lenses a and b and a diaphragm c having a small aperture
   此裝置稱為錐光鏡，如圖14 2所示，它由a和b兩個(gè)無(wú)應(yīng)力平凸透鏡和一個(gè)帶小孔的光闌c組成。
5. However , spectacles are made of thick convex lens . skills and precautions are needed to wear contact lens properly . both are not suitable for the elderly
   不過(guò)，這些眼鏡片有相當(dāng)?shù)暮穸?，配戴隱形眼鏡亦需要一些特別技巧，對(duì)于年紀(jì)較大的患者未必適合。
6. It's difficult to find convex lenses in a sentence. 用convex lenses造句挺難的
7. Since lenticular clouds look like one or more convex lens , they could sometimes be misinterpreted as flying saucers or unidentified flying objects , and so they are commonly known as " flying saucer clouds "
   由于這類莢狀云形狀像一塊或多塊凸透鏡，有時(shí)候被誤會(huì)為飛碟或不明飛行物體，所以亦俗稱飛碟云。
8. Analysis showed this might be due to the fact that a black hole passed in front of the star . the gravitation of a black hole can function as a convex lens and focus starlight , resulting in transience increase of apparent brightness of the star
   分析顯示，這很可能是因?yàn)橛幸粋€(gè)黑洞在恒星前面經(jīng)過(guò)，黑洞的引力會(huì)聚了星光，就像凸透鏡把光線聚焦一樣，使恒星的視亮度增加。