behind adv. 1.在后,在后面,向后,已成过去。 2.背地,在幕后,在背后。 3.迟,过(期),落后。 lag behind 落后。 My joy lies behind. 我的欢乐已经消逝。 He came ten minutes behind. 他迟到了十分钟。 glance [look] behind回头(看)。 The clock is more than five minutes behind. 钟慢了不止五分。 Your watch runs behind. 你的表慢了。 There is more behind. 里头还有情况[内幕]。 The season is behind. 季节拖迟了。 n. 〔口语〕屁股。 1.在…之后,向…后面;在…的那边。 2.在…的背后;作…的后盾;在…的里面,在…的幕后,操纵。 3.在…死后。 4.落后于;迟于;劣于。 get behind a tree 躲在树后。 He left behind him a great reputation. 流芳后世。 His house is a few yards behind the church. 他的家在教堂过去几步远。 an argument with experience behind it 经验之谈,有经验为证的论点。 He is behind the plan. 他是幕后策划人。 the person behind the wheel of a car 汽车驾驶人,司机。 His apprenticeship was behind him. 他的学徒期已满。 I am behind my class in mathematics. 我的数学比同班同学差。 be (far) behind (非常)迟缓,落后;(很)坏(Can spring be far behind 春天还会远吗?)。 be behind in [with] (payments work) (支付)误期;(工作)落后,耽误。 behind the times 落后,赶不上时代,不合时宜。 behind time 误期,过期,过时,迟。 from behind 从后。 get behind = go behind 追究…的根源[真相]。 leave behind 留在后头;忘记 (He left his stick behind him. 他忘记拿手杖就走了)。 put behind one 拒绝考虑(某事)。
lens n. (pl. lenses) 1.透镜;一组透镜。 2.【解剖学】(眼球的)晶体。 3.【摄影】(照相机的)镜头。 4.凸透镜状物件;汽车的灯玻璃。 5.【矿物】透镜状油矿;扁豆状矿体。 6. 隐形眼镜(=contact lens)。 a concave [convex] lens 凹面[凸面]镜。 an electron lens 电子透镜。 a biconcave [biconvex] lens 双凹[双凸]面透镜。 the power of a lens 透镜的焦强。
Posterior uveitis an inflammation of the uveal tract behind the lens 后段葡萄膜炎posterior uveitis
In honour of the 1000th issue of the magazine , leibovitz and seliger have shared their experiences behind the lens 为了庆贺第1000期的诞生,雷博微兹和塞利格分享了他们在镜头之后的那些经历。
When a collimated - well gaussian laser beam passes through a 27i - phase plate and then focused by a lens , a focused hollow beam ( fhb ) will be generated behind the lens , as a result of the completely ( r = 0 ) and partially ( r 0 ) destructive interference effects around the central region of the beam 当一束准直的高斯光束通过具有2位相分布的位相片和一个薄透镜时,这将导致在入射高斯光束中心的完全和部分相消干涉效应,于是在透镜后就会形成一束聚焦中空光束( fhb ) 。