这两种图景之间的差异可能会与超新星被当成“标准烛光”(也就是亮度已知的天体)来测量遥远宇宙距离的方式有关。
The difference between these two scenarios may have implications for how these supernovae can be used as "standard candles" — objects of a known brightness — to track vast cosmic distances.
在标准的视频测试中(循环播放MPEG4视频,打开WiFi,屏幕亮度设为65%),iPad2得到了10小时26分的好成绩。
In our standard video test (running an MPEG4 video clip on loop, WiFi on, screen at roughly 65 percent brightness), the iPad 2 managed an astonishing 10 hours and 26 minutes of non-stop playback.
现行标准l 70,指出当LED只能发出原始亮度的70%时,就算寿终正寝了。
The current standard, called L70, refers to the point at which an led is able to generate only 70 percent of the light it originally produced.
美国国家标准协会标准为测量一台显示设备的亮度和决定。
American National standard Institute standard for measuring brightness and resolution of a display device.
国际烛光一种旧式亮度单位,原来以一根有标准构成的蜡烛来定义,等于1。02坎德拉。
An obsolete unit of luminous intensity, originally defined in terms of a wax candle with standard composition and equal to1.02 candelas.
因此建立一个高精度的光谱辐照度和光谱辐亮度标准是非常必要的。
The Gauss model of point target image irradiance and the calculation model of the infrared radiation power are established.
整个软体是菜单式的,重点介绍了色品坐标和亮度测量的软体,包括标准输入、系统定标和测量子程序。
The interface of the sofyware is menu - styled. the components that deal with color and luminous density measurement, including standard input, system calibration, are emphasized.
系统量值传递是通过国家色度和亮度基准标准灯来完成的。
The whole system was calibrated by standard lamp with the standard transferred from the national primary photometric and colorimetric standard.
我们公司生产各种标准的LED电路板,用于市场上许多高亮度LED设备中。
Orb Optronix offers a variety of standard mount 1" metal core printed circuit boards for many popular high brightness LEDs on the market."
这种方法的具体做法是找到被称为“标准烛光”的天体,这一类天体的固定亮度是已知的。
That method involves searching for celestial objects, called "standard candles", whose intrinsic brightness is known.
在钻石分级的“4c”标准中,切工是非常重要的因素。因为亮度、火彩和闪烁是钻石展现美丽的根本原因。
Diamond cutting is a very important factor in its classification standard of 4c for the brilliance, fire, gleaming are the main reason of diamond's brilliance.
国际烛光一种旧式亮度单位,原来以一根有标准构成的蜡烛来定义,等于1。
An obsolete unit of luminous intensity, originally defined in terms of a wax candle with standard composition and equal to1.02 candelas.
椭圆形发光模式的LED与标准的LED产品相比,不但扩大了视角,而且增强了亮度,这使得这些器件特别适合于要求在阳光下清晰可读的户外应用。
An oval-shaped radiation pattern provides a wider field of view with higher luminosity than standard LEDs, making the devices ideal for outdoor applications where readability in sunlight is essential.
恒功率输出特性避免高压钠灯在高于220v标准电压时会产生超亮度浪费。
Constant power output characteristics can avoid prodigality caused by super-brightness when voltage of high-voltage sodium lamp exceeds 220v.
介绍了一种新型辐亮度校准系统,通过溯源至国家辐照度标准,构建了军用光辐射校准平台。
Traced to national irradiance standard, a new radiance calibration system is intended for military ray radiation calibration.
应用四点积分标准评价所有弹性图像的病变可视性、相对明亮度、边缘规则性和有限性。
All elastograms were evaluated for the lesion visibility, relative brightness, and margin regularity and definition by using a four-point scale.
在利用漫反射板标定光谱辐亮度的实验装置中,标准灯完全可以近似为点光源。
For experimental setup to calibrate spectral radiance by applying a diffuse plane, the measured spectral radiance can be obtained through integral of spectral radiation flux entering the spectrometer.
请以光通量为亮度标准,发光强度仅供参考。
Please take Luminous Flux as standard parameter, Luminous Intensity is only for reference.
可防止拉拔金属过热断丝、氧化变色并可保证成品表面光洁度、光亮度符合标准要求。
It can prevent pulling metal from overheat and oxidation coloring and have better finish degree and brightness.
获取单元,其获取比装置无关颜色空间中的标准最大亮度小的白色点的目标亮度;
The obtaining unit obtains a target lightness of the white point which is less than the standardized maximum lightness in the device independent color space.
细白铝银浆经特殊工艺制备,有效高的白度和非常好的遮盖力,表面细腻、平滑。针对不同的特性和要求又分为标准型细白银浆、丝绸型细白银浆和高亮度细白银浆三种。
With very fine particle size, narrow distribution, smoothness, and remarkable hiding capability. this series conteibutes not only high brightness. but also perfect fine and white surface effect.
资源包括评价用的照明适当的颜色纹理光泽金属亮度结构形象清晰DOI的标准样品。
The resources include lighting for evaluation, masters for colour, grain, gloss, metallic brilliance, texture, distinctness of image (DOI).
资源包括评价用的照明适当的颜色纹理光泽金属亮度结构形象清晰DOI的标准样品。
The resources include lighting for evaluation, masters for colour, grain, gloss, metallic brilliance, texture, distinctness of image (DOI).
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