focal distance

focal distance

美 　英

• na.【物】焦距
• 网络焦点距离；透镜的焦距；对焦焦距

英汉解释

na.

1. 【物】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；

Measurement of Lens Focal Distance: Using a Spectrum Interferometer Based on Fractional Fourier Transform

分数傅里叶变换频谱干涉法测量透镜焦距

Error Analysis and Ways to Make fewer in Measuring Focal Distance of Convex Lens

凸透镜焦距测量的误差分析和减小方法

The Function of Diaphragm in Measuring the Focal Distance of Lens

光阑在透镜焦距测量中的作用

Splashplate antennas with variable focal distance for forming the elliptic beam

椭圆波束变焦距溅散板天线

on the determination of errors in thin lens ' focal distance

对测定薄透镜焦距误差的探讨

Measurements of the focal distance of lens based on Lau effect in double grating

利用双光栅Lau效应测量透镜焦距

On the Focal Distance Formula of Lens in Varied Shapes

关于各种形状透镜的焦距公式