light density造句
例句与造句
- in this definition, the contrast is given by the ratio of two light densities .
对比度定义为两个光密度之比。 - the definition and sharpness of the images depends on the light density of the surroundings and on the magnification .
象的分辨力和清晰度取决于周围背景的光密度和放大率。 - high brightness 7-color leds and light density of each color can be automatically switched
采用超高亮度七彩led，可自动转换颜色和亮度。 - effect of pruning on light density, yield and biomass of crops in poplar-crop intercropping system
国外混农林业系统中林木与农作物的相互关系研究进展 - 3 . using mathematics morphology on the abstraction of chromatic light density and veins characteristic of the blood cell image
对血细胞图像进行数学形态学，彩色光密度和纹理特征的提取。 - It's difficult to find light density in a sentence. 用light density造句挺难的
- the light density has been directly defined as the square of an absolute value and it is used to describe the propagation and transformation of laser beam in the traditional scalar diffraction theory
在传统的标量衍射理论中，采用光场复振幅的平方作为光强的定义来描述光场的能量传输规律。 - a new method for measuring the vibration of shadow mask without touch by detecting the light density with reflection type optical fiber sensor is presented . the measurement system based on the new method is designed to make the vibration measurement easier working, faster calculating, and get more precise results . it is an important measurement and analysis tool to improve the performance of shadow mask and display quality of cpt
本文提出了基于单光纤光强度反射法的非接触式微振动测量系统的原理，并设计制造了该测试系统，探索出了简单方便可靠的测量方法，能够准确客观地反映荫罩振动的各项参数(各振动模的振动频率、振幅、衰减时间)，实现了测试装置的简便化和测试过程的自动化，为cpt张紧式荫罩系统的性能改进与显示质量的提高提供了有效的测试分析手段。 - eight concrete samples of different compound ratio of artificial lightweight aggregate ( coarse aggregate of expanded shale ) and ordinary aggregate, water-reducing admixture, expanding admixture, etc, are compounded firstly, based on the research of main properties such as agitating property, strength, dry surface density and deformation, an optimum compound ratio of the concrete with high strength ( cl40 ), light density ( 1800 ) and slight expand is achieved
首先，采用人造轻骨料(页岩陶粒)及普通骨料，加入减水剂、膨胀剂等，配制出了八种不同配合比的轻骨料砼与普通砼，并对其和易性、强度、干表观密度、变形等主要性能进行了试验研究，得到了强度等级cl40，密度等级1800的轻骨料中高强度微膨胀砼最佳配合比。