Wind resistance with fin spacing and wind speed are derived.
在大量试验结果的基础上,得出了该换热器的当量换热系数,风阻力损失与片距、风速的关系式。
Based on researching and analysing the experimental results, the correlation formulate of equivalent heat transfer coefficient, Wind resistance with fin spacing and wind speed are derived.
采用较先进的测试手段，对波形换热器进行了试验研究在大量试验结果的基础上，得出了该换热器的当量换热系数、空气侧阻力损失与片距、风速的关系式
The method of distance measurement based on defocused spots from mono-view is analyzed in theory, and the telecentric light path is used to improve the detection of defocused spots in the system.
在理论上分析了基于弥散斑的单基站定距方法,并利用远心光路改善弥散斑的测量。
Focus-to-film distance(f.f.d)
焦点-胶片距离(焦距)
Eyeglasses having trifocal lenses.
有三焦距镜片的眼镜
The film takes considerable liberty with the novel on which it is based
影片与原作颇有距离
The film takes considerable liberties with the novel on which it is based, eg by shortening or changing it.
影片与原作颇有距离.
Bring the object into focus if you want to take a good photograph
你想拍一张好照片，就得对准焦距。
Take a close-up photograph of my classmate.
给我的室友拍了一张近距离照片。
and distant galaxies that we have ever seen.
和远距离星系的最清晰的照片。
You cannot take a good photograph unless the object is in focus.
只有对准焦距才可以拍出好照片。
a photograph transmitted and reproduced by telephotography.
由远距离照相术发射或拍摄的照片。
A photograph or a film or television shot taken at close range.
特写近距离拍摄的照片、电影或电视
Designand Implementation of Very Short Reach Convertor IC;
甚短距离（VSR）光传输数据转换芯片设计
Design of Ultrasonic Range Finder Based on AT89C52;
基于AT89C52单片机的超声波测距器设计
The Design and Implementation of a Remote Water-Level Intelligent Monitoring System;
一种远距离水位单片机智能监控系统
Ultrasontic Range Finding System Based on Microcontroller;
超声波测距的电路设计与单片机编程
Design of Ultrasonic Range Finder Based on C8051F320
基于C8051F320单片机的超声波测距仪
Implementation of short distance wireless communication based on AT89C52
基于AT89C52单片机实现短距离无线通信
This rangefinder fixes the target, measures the distance and passes it along to a computer chip in the shell.
测距器瞄准目标，测量距离，将数据传到子弹里的计算机芯片上。
Having indentations that extend about halfway to the center, as in certain leaves.
半裂的有锯齿状边缘的，延伸到距中心一半的距离，例如某些叶片