查询词典 luminous point

A unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions .

流明国际度量系统中的''单位，等于一烛光的均匀点光源在单位主体角内发出的

A unit of luminous flux '' to the amount of light given out through a solid '' of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions .

光通量单位''一国际烛光照射在距离为一厘米面积为一平方厘米的平面上的光通量。

A unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela '' radiating uniformly in all directions .

流明国际度量系统中的''单位，等于一烛光的均匀点光源在单位主体角内发出的

A unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions.

光通量单位等于一国际烛光照射在距离为一厘米面积为一平方厘米的平面上的光通量。

Quotient of the luminous flux incident on an element of the surface containing the point, and the area of that element.

照射到表面一点处的面元上的光通量除以该面元的面积。

The luminous flux per unit area at any point on a surface exposed to incident light.

一支蜡烛的点光源在每英尺表面的照度的单位。

This text has done a summary to PSD first , then introduce the structure , operation principle and characteristic of PSD, PSD position sensor experimental provision and measuring the circuit, study size , to enlarge size , mid point position of coefficient choose measurement range , sensitivity , non-linear influence of error in PSD circuit of luminous point emphatically.

本文先对PSD做了一个概述，然后介绍了PSD的结构、工作原理及特性，PSD位置传感器实验装置及检测电路，着重研究了光点的大小、电路的放大系数的大小、中点位置的选取对PSD的测量范围、灵敏度、非线性误差的影响。

The measuring mechanism of diffusion nephelometer and methods for its improvement were studied,the result of which shows that the diffusion nephelometer using a new-type monochromatic electronic light source and provided with a luminous intensity stabilizing circuit is featured by high accuracy and sensitivity in case of narrow range of NTU,with good linearity up to 100 NTU,without frequent adjustment of zero point an

探讨散射式浊度仪的测试机理和改进方法。测试结果表明，采用新型单色电子光源和配备发光强度稳定电路的散射式浊度仪具有低浊度范围准确性和灵敏度高，至100NTU线性好，不须经常调整零点和重新标定，耗电量少，光源寿命长和抗色度干扰能力强等特点，适用于水厂提高滤池效果和监测出水水质。

The creative point of this dissertation consists firstly in that monochromatic stimuli instead of combined spectral power distribution were used as visual object, and spectral luminous efficacy curves were drawn from the performance-based method; Comparison between performance-based method and brightness-matching method was then done and therefore connection between these two methods was developed; One more creative point is that the analysis based on the theory of neurophysiology and psychophysics leads to the conclusion that contribution of the colour channel during visual information processing is reflected from performance-based method, which should be considered when CIE develops the new mesopic photometry system.

论文的新颖之处在于实验中使用了单色光谱代替复合谱或物体色作为视觉目标，在分析中间视觉状态下视觉功能的光谱响应特性的基础上反推了人眼的光谱光视效率函数；论文更进一步验证了基于视觉功能法和传统的视亮度匹配法之间的联系，在两种方法之间构造了一座桥梁，为基于视觉功能法的使用初步建立了理论依据；同时论文创新地采用心理物理学的方法进行实验和结合物理学和视神经生理学的知识对实验结果进行分析，从而从视觉信息处理的神经机制层面证明了基于视觉功能法获得的结果包含了视觉颜色通道效应，并对CIE在建立新的中间视觉光度学系统时要充分考虑这一视觉颜色通道的影响提出了建议。

Will the future arrive? It seems as though we might almost put this question, when we behold so much terrible darkness. Melancholy face-to-face encounter of selfish and wretched. On the part of the selfish, the prejudices, shadows of costly education, appetite increasing through intoxication, a giddiness of prosperity which dulls, a fear of suffering which, in some, goes as far as an aversion for the suffering, an implacable satisfaction, the I so swollen that it bars the soul; on the side of the wretched covetousness, envy, hatred of seeing others enjoy, the profound impulses of the human beast towards assuaging its desires, hearts full of mist, sadness, need, fatality, impure and simple ignorance.Shall we continue to raise our eyes to heaven? Is the luminous point which we distinguish there one of those which vanish?

我们应当不厌其烦地反复提出：要最先想到那些没有生计的痛苦民众，为他们减少困难，让他们得到空气和光明，爱护他们，扩大他们的视野，使他们感到灿烂辉煌，用种种形式为他们提供接受教育的机会，为他们提供劳动的榜样，而不是游手好闲的榜样，减轻他们个人负担的压力，增加他们对总目标的认识，限制穷困而不限制财富，大量创造人民共同劳动的天地，象布里亚柔斯①那样，把一百只手从四面八方伸向受压迫和软弱无力的人，为这一伟大职责运用集体的力量，为所有的胳膊开设工厂，为所有的才能开办学校，为所有的智力设立实验室，增加工资，减轻惩罚，平衡收支，也就是说，调整福利与劳动之间和享用与需求之间的比重。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失