然而，通过光谱学测量，宇宙中氦的数量表明，宇宙中重子的数量要比基于星系光度所估计的要多得多。
However, the amount of helium in the universe, as measured by spectroscopy, suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate.
当前我们对太阳光度的认知是：在地球的历史进程上，太阳光度应该是逐渐增加而不是减少的。
Our present understanding of the Sun's luminosity holds that it should have progressively increased, not decreased, over the course of Earth's history.
采用紫外分光光度法测定了芫荽籽中总黄酮的含量。
The flavonoids in Coriandrum seeds were determined by ultraviolet spectrophotometry.
本标准描述了外部锁定型光控器之间的光度控制方法。
This standard describes methods of light level control between an external locking type photocontrol.
基于特定的旋光度值和糖成分，已经评估了ASP的几种化学和物理性质。
Several chemical and physical properties of ASP have been evaluated based on specific optical rotation values and sugar composition.
利用原子吸收分光光度法对中药川芎中锌、锰、铁、钙、镁五种元素的形态进行了研究。
Speciation of Zn, Mn, Fe, Ca, Mg in Ligusticum wallichii Franch was analyzed by atomic absorptionspectrometry.
具体来说，光度与半径的平方呈正比。
天文学家用星等和光度来描述恒星的亮度。
Astronomers describe star brightness in terms of magnitude and luminosity.
银河系外的有些星体其光度超过太阳。
恒星在MK系统下，也经常根据光度分类。
Stars are also classified by their luminosity under the Morgan-Keenan system.
通过光度与光谱证据，也许还能发现森林和草原的痕迹。
There will be photometric and spectroscopic evidence for forests and savannahs.
今天的相机能够将感光度调到3200并且成像效果很好。
Today's cameras routinely go up to ISO 3200 and deliver great image quality.
另一个提高你活动曝光度的活动是同时奖励个人和慈善组织。
Another way to increase your campaign’s exposure is to reward individuals as well as the charity.
如此做来，你开始学习如何使用闪光，调节感光度差值，以及白平衡。
In doing so, you learned to control the flash, the ISO value, and the white balance.
当用长曝光拍摄的时候，用一个低的感光度可以减少可能出现的像差。
Using a low ISO setting will help reduce the aberrations that can appear when photographing with long exposures.
关注当地的新闻动态可以帮助你发现一些曝光度不那么高的工作机遇。
Staying on top of local news can often help you spot opportunities that aren't advertised anywhere.
再次切换到工具箱的减淡工具，将范围设置为中间调，曝光度为15%。
Now switch to the dodge tool, located in the toolbox, and set to 'Range: Midtones' and' Exposure: 15% '.
一个完整的MK系统代号包含光谱类型和光度型两部分——例如，太阳属于G 2 V类恒星。
A complete MK designation includes both spectral type and luminosity class -for instance, the sun is a G2V.
如果存在三聚氰胺，将会形成一种沉淀物质，这也可以同时通过肉眼观察和分光光度法进行判断。
If melamine is present, a precipitant is formed, which can also be assessed both visually and by spectrophotometry.
在Flickr上存放你的酒店照片可提升你的网上曝光度，并可引起潜在客户的关注。
Hosting your hotel photos on Flickr increases your web presence, building awareness among potential guests.
之前，一项称为微量分光光度测定法的技术显示，鲨鱼的近亲鳐鱼和奇美拉都有辨色能力。
A technique known as microspectrophotometry had previously shown that rays and chimaeras, both close relatives of sharks, have color vision.
白天在家里使用蓝光度较高的节能灯是个好主意，在晚上则使用蓝光量可能最低的节能灯。
At home, it is a good idea to use energy-efficient lamps with a higher proportion of blue light during the day, and in the evening use ones with the lowest possible amount of blue light.
这样的话，可以通过后期处理减弱曝光度，同时因为相机感光较多，可以把噪点限制到最少。
This way the exposure can always be decreased afterwards — while still maintaining minimal image noise because more light was collected at the digital sensor.
原理上，我们可以通过观测所谓的标准烛光(一种天体，它的绝对光度是相同的)来追溯宇宙内的历史。
In principle, one can trace that history back in cosmic time by observing a so-called standard candle, a class of astronomical object whose intrinsic luminosity is uniform.
《福布斯》的百位最具影响力名人榜通过吸金能力、媒体曝光度等指标对明星进行综合排名。
Forbes' Celebrity 100 power rankings are based on a combination of earning power and media exposure.
不过并不是所有情景都适合高光的存在，一个细微的高光就能造成物体表面抛光度的巨大不同。
And while not suited to every situation, a tiny highlight can make all the difference in polishing an interface.
他信表示，泰国有关地区受地震海啸毁坏的旅游设施已基本修复，欢迎中国游客前往观光度假。
Thaksin said that the tourism facilities which were destroyed by the tsunamis in some parts of Thailand have been basically restored and the Chinese tourists are welcomed to those areas.
鼓励人们喜欢上你的Facebook内容，并在尽可能多地留言，这样可以提升你的曝光度。
Encourage people to like and comment on your Facebook content as much as possible to raise visibility.
鼓励人们喜欢上你的Facebook内容，并在尽可能多地留言，这样可以提升你的曝光度。
Encourage people to like and comment on your Facebook content as much as possible to raise visibility.
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