单词：plano-convex
音标：[,pleinәj'kɔnveks,-kɔn'veks] ；
a. (透镜)平凸的
a. Plane or flat on one side, and convex on the other;
as, a plano-convex lens. See Convex, and Lens.
as, a plano-convex lens. See Convex, and Lens.
单词：plano-convex 相关文章
AS IT IS 2013-06-29 Man of Steel Still Going Strong Hello again, and welcome. Im June Simms in Washington. Today on As It Is, we celebrate the life and times of one of worlds most beloved superheroes. Well hear the story of how Superman came to be an
发表于:2018-12-07 / 阅读(352) / 评论(0)
2013年VOA慢速英语(六)月
2013年VOA慢速英语(六)月
By Greg Flakus Dallas, TX 21 September 2006 watch American Ramadan Movie Muslims around the world will begin a month of fasting and prayers known as Ramadan on September 23rd. (The exact date is determined by Muslim holy men using the lunar calendar
发表于:2019-01-12 / 阅读(396) / 评论(0)
2006年VOA标准英语（九月）
2006年VOA标准英语（九月）
Small Illinois Town Gets Boost From New Superman Movie Plano Mayor Bob Hausler said, I would say a great Midwestern small town, and we epitomize that. Hausler was in charge of the city's government in 2011 when a Hollywood production company came to
发表于:2019-01-14 / 阅读(308) / 评论(0)
VOA标准英语2013年(六月)
VOA标准英语2013年(六月)