查询词典 focus

equivalent focal length：等效焦距,等值焦距

equivalent flocculation 当量絮凝作用 | equivalent focal length 等效焦距,等值焦距 | equivalent focus 等值焦点

tangential focal line：切向焦线

tangential distortion 切向畸变 | tangential focal line 切向焦线 | tangential focus 正切焦点

sagittal focal line：弧矢焦线

sagittal field curvature 弧矢场曲率 | sagittal focal line 弧矢焦线 | sagittal focus 弧矢焦点

meridianal focal line：子午焦线

meridianal curvature of field 子午场曲 | meridianal focal line 子午焦线 | meridianal focus 子午焦点

focal plane：焦面

focal length ratio 焦距比 | focal plane 焦面 | focus of earthquake 震源

front focal plane：前焦平面

front focal length 前焦 | front focal plane 前焦平面 | front focus 前焦点

paraxial focal plane：傍轴焦面

paraxial constant 傍轴常数 | paraxial focal plane 傍轴焦面 | paraxial focus 傍轴焦点

image focal point：像焦点

image flattening optical system 平像场光学系统 | image focal point 像焦点 | image focus 像焦点

anterior focal point：前焦点

anterior chamber (眼)前房 | anterior focal point 前焦点 | anterior focus 前焦点

object focal point：物方焦点

object field 物方视场 | object focal point 物方焦点 | object focus 物方焦点

air ventilator：通风管

air purifier 空气滤清剂 | air ventilator 通风管 | air-bleed 空气分泄器

sound motion picture, talkie：有声电影

silent cinema, silent films 无声电影 | sound motion picture, talkie 有声电影 | cinemascope, CinemaScope 西涅玛斯科普型立体声宽银幕电影,变 形镜头式宽银幕电影