focal distance

单词focal distance

基本解释

na.: 【物】焦距
网络: 焦点距离；透镜的焦距；对焦焦距

英汉解释

• 【物理学】焦距

例句

• In measuring the focal distance of lens, the experimental accuracy is often affected by the poor quality in the formation of images.

  在测量透镜焦距时，往往由于成像质量差而影响实验的精度。

• The eye that has no focal distance voicelessly opens, and northern wild strong eyes four eyes are inverse.

  毫无焦距的眼，静静的张开，和北野烈的眼眸四目相对。

• experience, the authors introduce basic operations, choice of film, regulation of focal distance and exposure, and choice of color filter.

  笔者以自己多年显微摄影工作之经验，就该技术的基本操作、胶片选择、焦距和曝光调节、滤色片选择等诸多技术要点作了介绍。

• The authors have reported two methods for measuring the efficient focal distance of the laser rod lenses.

  提出几种计算和测量激光棒负透镜等效焦距的方法。

• Design of Annular Lens Dark Field Vertical Illumination System and Its Focal Distance Offset Characteristics

  环形透镜暗场落射照明系统设计及其焦移特性的研究

• Design method of the ring-focus antenna with a variable focal distance for forming an elliptic beam

  椭圆波束变焦距环焦天线的设计方法

• "Focal distance" indicates the distance from radiographic source center to the film;

  “焦距”为射线源中心到胶片的距离；

• the optimal focal distance of the main body is obtained and the digital image is shot;

  获得该主体的最佳焦距，并拍摄一数字图像；

• Using Spectrometer to Measure with Precision the Focal Distance of Concave Mirror

  用分光仪精确测定凹透镜焦距

• the shooting focal distance of the sectional images is analyzed;

  分析该些区域图像的拍摄焦距；