transmission density

Some objects do not allow light to go through them . optical transmission density

有些物体是不透光的。光学透射密度，即光学玻璃或器材的透光程度，是不透明度的对数

N the basis of the revision of transmission density value of 1:2000 infrared color aerial film with ratio method and correlation analysis of the Grand Canal water pollution parameters , this paper puts forward the best image detection density and suggests relative models .

采用比值法对1：2000彩红外航空胶片透射密度值进行修正，并与运河水质污染参数进行相关统计分析，提出了水质有机污染参数的最佳影象探测密度，建立了相关模型。

Numerical Calculation of Light Path in Diffuse Visual Transmission Density

漫透射视觉密度基准中光路调试的数值计算

The Study on The Determination of Transmission Density for Black and White Photographic Films

黑白胶片感光测定中密度测量的研究

The Standard of Visual Diffuse Transmission Density

视觉漫透射密度标准

A measuring instrument about diffuse visual transmission density is introduced , and a numerical calculating method is discussed , which is applied in the advanced research .

本文介绍了漫透射视觉密度基准的测量装置，详细论述了该基准装置改造时光路调试中应用的数值计算方法。

In this paper a theoretic analysis is given , which indicates that information transmission density and transmission rate can be increased within a limited transmission frequency band by using symmetric ternary PCM technique .

本文提出了采用对称三值逻辑PCM技术可以在有限的传输频带上提高信息传输密度和传输速率的理论分析。

The Uncertainty Analysis for the Indication Value of Diffuse Transmission Light Density Meter

漫透射视觉密度计示值误差的测量结果不确定度评定

The operation principle and features of GRIN Lens numerical aperture tester based on the angle transmission light density measurement are described . The measured results are given . The measuring uncertainty U ( ZG ) is 0 . 8 % .

报导了以测量角透过光强方法为基础的GRIN透镜数值孔径测试仪的工作原理、特点和测量结果，其测量不确定度U（2σ）达到0.8%。

Measurement of moisture in pottery material using thermal neutron transmission gauge with density compensation

带密度修正的热中子透射计测陶料水分的研究

Applying the improved genetic algorithm to select cluster head , combined with the remaining energy , transmission distance and density of the nodes to optimize the cluster-heads selection , thus the cluster-heads distribution more reasonable .

将改进遗传算法应用到LEACH协议的簇头选择过程中，结合节点的剩余能量，传输距离以及节点密度对簇头选择进行优化，从而使选出的簇头分布更合理。

In view of this situation , analyzed are the methods and principle of density and caliper logging in hostile environment . Emphasized are compatibility of toolpusher logging technology , data acquisition and transmission of the density and caliper logging .

针对这一问题，分析密度与井径在水平井测井中的特殊环境以及其测井原理与方法，着眼于水平井测井工艺的配套分析，同时涉及密度与井径的数据采集及传输。

The Control for Transmission Thickness Ratio and Density with Off-centre Circumferential Exposure Method

偏心周向曝光法透照厚度比和黑度的控制

Because of high transmission rate and high density of the signal , signal integrity problems of the high-speed connector became increasingly serious .

信号的高传输速率和高密度使得高速连接器中的信号完整性日益严重，必须对其进行研究。

In this thesis , the heat transmission coefficient and exit density of two-effect evaporation experimental facility are investigated .

本文以两效蒸发实验装置的传热系数和出口浓度在线检测系统为研究对象。

This article discusses the key technology of improving compact disc information from three aspects : storage density , data transmission rate and superhigh density storage .

本文从光盘的存储密度、数据传输率和超高密度存储三个方面讨论了提高光盘信息存储的关键技术。

It is a consensus to replace electron with photon as the carrier of information because photonic technology has several advantages , such as high transmission speed , high density and high fault tolerance .

光子代替电子作为信息的载体是人们的一个共识，因为光子技术具有高传输速度、高密度及高容错性等优点。

The particle size influenced the eduction of volatile of straws , as well as heat transmission process . The density of straws had effects on the circulation of stock and heat transfer coefficient .

颗粒度大小影响秸秆挥发分的析出以及传热过程，密度大小影响到原料的循环以及传热系数；

The transmissive depths of the heat of solar radiation are only 0 ~ 22 cm in snow layers , the heat-resisting factors in the process of heat transmission are mainly snow density and water content ;

太阳辐射热量在雪层中的传递深度仅在0～22cm之间，阻热因素主要取决于积雪密度和含水率；

According to pulse transmission equation and carrier density equation , performance of wavelength converters based on cross-gain modulation in semiconductor optical amplifiers in counter propagating mode were studied in terms of extinction ratio and chirp of the converted signal .

从脉冲传输方程和载流子密度方程出发，详细分析了相向工作方式下交叉增益调制型波长转换器转换后光的消光比和啁啾特性。

Results At the end of 2001 , the snail area , high transmission area , snail density , infection rate of snail and infected snail density were reduced by 54.0 % , 91 . O % , 91.0 % , 98 . O % and98.0 % respectively .

结果环改工程实施5年来钉螺面积、易感地带面积、钉螺密度、钉螺感染率、感染性钉螺密度分别降低54.0%、91.0%、91.0%、98.0%和98.0%。

Compared with three-phase transmission system , six-phase transmission system is an ideal multiphase transmission system , which can evidently improve power transmission density , and has lower phase-phase voltage .

六相输电系统与三相输电系统相比，具有传输功率密度大、相间电压较低等优点，是一种较理想的输电方案。

However , the transmission distance of UWB is only from meters to more than ten meters according to the quite low transmission power spectrum density .

但是，较低的发射功率谱密度导致UWB信号的传输距离只有几米到十几米。