Eventually, she and her colleagues worked out that the dragonfish reflects just one in every 2,000 photons incident upon it-an absorbance of 99.95%.

最终，她和她同事发现深海龙鱼仅反射入射到其表面1/2000光—吸光度为99.95%。

In addition, the sun's increasing luminosity will cause severe effects on Earth.

此外，太阳光度持续增加将对地球造成严重影响。

After that, we'll pass it through the spectrometer to measure how much glucose is present.

之后我们再使用分光光度计来测定其中含有多少葡萄糖。

Unfortunately with this comparison, the searchlight is not nearly bright enough to represent fully the gamma-ray burst and in fact we would need a hundred billion such searchlights to have an adequate comparison.

令人遗这个对比，探照灯光度几乎还不足以充分代表伽玛射线爆发，事实上我们需要1000亿个这样探照灯才能够进行恰当对比。

Whether you're looking at somebody from far away or even at a low resolution, eyebrows are often still visible and continue to make an important contribution to the geometric and photometric structure of an observed image.

无论你从远处看还在低分辨率下看，眉毛通常仍然见，并且继续对观察到图像几何和光度结构做出重要贡献。

" A common misunderstanding is that a surgery can cure myopia, but in fact, the procedure can only remove the need for glasses, or apply the refractive function of glasses to the eyeball, " he said.

“目前最常见误区很多人都认为手术以治愈近视，实际上严格来讲，手术仅仅‘摘镜’，也就说，通过手术手，镜屈光度施加到球上，让我们球能够匹配过度生长度数。

The cuvette is used with a machine known as a spectrophotometer which analyzes the liquid by measuring the amount of light that is absorbed by it.

比色杯要跟一种名为分光光度计机器一起使用。分光光度计以分析样本液体，方法测量样本吸收光量。

He came up with a system called magnitudes, where the brightest stars were 1st magnitude, the next brightest were 2nd magnitude, down to 6th magnitude.

他提出了一个叫做光度量级系统，其中最亮恒星1级，其次2级，一直到最后6级。

The device also has a diopter adjustment built in, so people who wear glasses or contact can use it without wearing additional vision correction.

该设备还内置了屈光度调节功能，因此佩戴镜或接触人无需佩戴额外视力矫正即使用它。

No, sir, I answered with conviction. Not even angel-wing clams or salps have ever given off such a powerful light.

不，我很有握地答，富拉得或沙尔已之类动物决不能发出这么强光度。

The company uses a tool called the Spectrophotometer to compare the same color on different surfaces.

潘通公司会使用一种名为分光光度计工具来比较不同表面上相同颜色。

One is to look for stars in the nearby universe whose absolute luminosity we know.

一种在附近宇宙中寻找我们知道其绝对光度恒星。

These are called Cepheid variables, and they were critically important, because it was known that the time it took them to pulse was directly related to their luminosity, how much energy they emitted.

这些被称为造父变星，它们非常重要，因为我们知道它们产生脉冲时间与它们光度直接相关，也就它们释放能量。

Wei Wenbin, a senior ophthalmologist at Beijing Tongren Hospital, told a recent news conference that laser eye surgeries are recommended for people age 18 and above to ensure stable refraction, but rigorous pre-operation evaluations should be carried out.

北京同仁医院资深科专家魏文斌在最近新闻发布会上表示，建议18岁及以上人接受近视激光手术，确保稳定屈光度，但应进行严格术前评估。

Set astern of the pilothouse is a powerful electric reflector whose rays light up the sea for a distance of half a mile.

在领航人笼间后面，装有一座光度很强电光探照灯，半海里以内海洋都以照亮。

By connecting the spectrophotometer to a smartphone, a smartphone app is used to show the results.

将分光光度计和智能手机连接后，智能手机上就以显示结果。

Finally in 1 billion years the sun's luminosity will have increased 10% from its current state.

最后，在十亿年后，太阳光度将比目前状态增加 10%。

The sun was already sending sufficient light under these waves. The tiniest objects remained visible.

太阳已经足够光度照到水底下来，最微小物体也以看见。

The HR diagram plots stars' luminosity versus temperature, and most stars fall along the main sequence, where they live most of their lives.

HR 图描绘了恒星光度与温度关系，大多数恒星沿着主序下落，它们大部分生命都在主序中度过。

We were not 100 feet from the blazing core of light, whose glow grew stronger and dazzled the eyes.

人们距白热焦点不到一百英尺了，光度更强起来，照得我们睛发昏。