focal length

释义

focal length美 英 n.焦距网络镜头焦距；焦距长度；焦长复数：focal lengths  权威英汉双解英汉英英网络释义focal lengthn.1.焦距the distance between the centre of a mirror or a lens and its focusn.1.【摄】焦距na.1.“focal distance”的变体n.1.the distance from the center of a lens or mirror to its focal pointna.1.The variant of focal distance1.焦距常用物理英文词汇 - 豆丁网 ... fluid 流体 focal length 焦距 focusing 调焦，聚焦 ... www.docin.com|基于3435个网页2.镜头焦距特种长距离镜头和电动变倍镜头，生产定做镜头 ... 工作电流 Power Consumption 镜头焦距 Focal Length 变倍比 Optical zoom ... haishun.net|基于222个网页3.焦距长度　　焦距长度（Focal Length）——50mm左右拍摄出来的烟雾更自然　　曝光模式（Exposure mode）——手动 　　透镜孔径（Aperture）…www.cflac.org.cn|基于102个网页4.焦长其焦长 (focal length) 为 f 的镜头, 视角 (angle of view) 为 2*arctan(21.6/f)(2) APS-C 感光元件是 13.8x20.7 mm 到 19.1x28.7 m...tw.knowledge.yahoo.com|基于87个网页5.物镜焦距电气专业词汇 - 天天文档-文档下载中心 ... FMfrequency modulation 调频 focal length 物镜焦距 focus lampspotlight 聚光灯 ... www.wendang365.cn|基于17个网页6.焦段4/3镜头全接触,列表.新旧镜头资料对比,介绍... ... Name 名称 Focal Length 焦段 F-StopF 口径 ... www.julur.com|基于10个网页7.焦距透镜的焦距航海及海运专业英语词汇(F4) ... focal length 焦距 focal length 焦距透镜的)焦距 focal plane of the light 灯光中心 ... www.zftrans.com|基于6个网页更多释义收起释义例句释义:全部全部,焦距焦距,镜头焦距镜头焦距,焦距长度焦距长度,焦长焦长类别:全部全部,口语口语,书面语书面语,标题标题,技术技术来源:全部全部,字典字典,网络网络难度:全部全部,简单简单,中等中等,难难更多例句筛选收起例句筛选1.Spot diameters of just a few thousands of an inch can readily be attained with convenient short focal length lenses.用普通的短焦距透镜不难得到直径只有几十微米的光点。2.The focal length you need depends on your distance from the burst and what you\'re trying to capture.你所需要的焦距取决于你和被拍摄焰火间的距离，以及你想捕捉到怎样的画面。3.Use angle encoder calibration coefficient of deviation of the long focal length of high-precision tracking system was satisfactory results.利用编码器标定角偏差系数的方法，在长焦距高精度跟踪系统中获得了满意的效果。4.Objective and the focal length of the specimen to be measured. The measurement of the size of the reticle.十字线的像的尺寸取决于准直仪物镜的焦距和待测样品的焦距。5.To determine power, divide the focal length of the telescope (in mm) by the focal length of the eyepiece (in mm).将望远镜的焦距（单位：mm）除以目镜的焦距（单位：mm），就可以得到望远镜的放大率。6.The focal length of the condensing lens should be such that the image of the source just fills the projecting lens.聚光透镜的焦距应使光源的像正好照满放映透镜。7.If you know the FOV, sensor size, and working distance, you can compute the focal length of the lens you need using the following formula.如果你知道视野FOV，感应器大小，和工作距离，你能用以下之方程式去计算你所需之镜头的焦距。8.It can be used to really evaluate the optical performance and imaging characters at any focal length of a zoom system.可借助该程序对变焦系统任意焦距位置的光学性能和像差特性进行实时评估。9.Using a longer focal length and photographing stars far from the north star increase the distance stars will move across the image.使用长焦镜头拍摄远离北极星的星星，会增加星星在相片上移动轨迹。10.Or, you can calculate the exit pupil by dividing the focal length of the eyepiece (in mm) by the focal ratio of the telescope.或者，你还可以将目镜的焦距除以望远镜的焦比来得到出瞳尺寸。