Clouds heap upon clouds and it darkens.
云霾堆积，黑暗渐深。
Clouds heap upon clouds and it darkens.
云霾重重堆积，天色暗下来了。
The sky above turns overcast, then steadily darkens.
头顶的天空开始转阴，然后渐渐黑了下来。
Melanin darkens the skin and is the cause of suntan.
黑色素使皮肤变黑是人被晒黑的原因。
Themoon's shadow darkens part of Earth during a solar eclipse.
在一次日食中，月亮的影子使地球的一部分黑下来。
A total solar eclipse darkens the skies in Chongqing municipality in China.
当日全食食甚来临，重庆市的天空被一片黑暗笼罩。
In a cool climate, its appears pure blue, but darkens to a purple when the temperature rises.
在凉爽的气候下，它呈纯蓝色，但随着温度的升高，它会变暗，逐渐呈现出紫色。
But occasionally the sky darkens, the air becomes heavy, and a cool torrential rain fills the dry gullies.
可是有时天空也会突然转暗，空气变得浊重，接着就是一场急骤的冷雨倾注到干涸的沟壑。
Clouds heap upon clouds and it darkens. Ah, love, why dost thou let me wait outside at the door all alone?
乌云堆积，越来越暗。呵，爱，你为何让我独自等候在门外？
Clouds heap upon clouds and it darkens. Ah, love, why dost thou let me wait outside at the door all alone?
云霾堆积，黑暗渐深。呵，爱，你为什么让我独在门外等候？
I'd ferry across the Yellow River, but waterway blocked by ice; About to go up Mt. Taihang, but snow darkens the sky.
欲渡黄河冰塞川，将登太行雪暗天。
Creates a new dark color object for the control from the specified color and darkens it by the specified percentage.
根据指定的颜色为控件创建一个新的深颜色对象并按照指定的百分比使其颜色变深。
In response to the UV rays frying your inner layer of skin, your body produces more melanin pigment that darkens the skin.
作为对紫外线灼伤内皮层的反应，你的身体会产生更多的黑色素使皮肤颜色变深。
One night a accidentally bumped into a man, and perhaps because of the near darkens he saw me and called me an insulting name.
一天晚上我碰巧撞上了一个男人。大概是因为周围一片漆黑，他看见了我，然后骂了我。
A subterranean flow of briny water could rearrange sand grains or alter surface roughness in a way that darkens its appearance.
地下水流的流动会使得沙粒积累，并使得表面变得粗糙，从而颜色更深。
Looks at the color information in each channel and darkens the base color to reflect the blend color by increasing the contrast.
查看每个通道中的颜色信息，并通过减小对比度使基色变亮以反映混合色。
Looks at the color information in each channel and darkens the base color to reflect the blend color by decreasing the brightness.
查看每个通道中的颜色信息，并通过减小亮度使基色变暗以反映混合色。
Cherrical reaction reveals that oxygen reacts with PPS molecule chain and tiffs increases the brittleness and darkens the color of filter.
另外，理论分析表明PPS分子链加入了氧元素，使其颜色加深，脆性增加。
The window darkens when the outside air temperatures soar, and becomes transparent when it gets cold in order to capture free heat from the sun.
当外界气温飙升时，窗户会变暗，当外界变得寒冷时，它会变成透明，以捕获从太阳发出的热量。
With time red wines become light in color and on the other hand the white wine darkens in shade. The wine has to be clear and not cloudy like a beer.
随着时间的推移再慢慢开始观察葡萄酒的颜色和另一方面，其中白葡萄酒的颜色会变暗。
Honey that has heat-treated darkens with age and heat, loses some of its delicate aromas and heat sensitive enzymes. Vitamins, and yeast, and sometimes separates.
已经加热及处理的蜂蜜，颜色会随着时间及加热而变暗，失去一些香气以及在加热中易失去的酶，维他命，酵母菌等。
The six-speed automatic , with the shifter in manual mode, helps the car shed its cast of servile domestication when the road opens up and the driving mood darkens.
借助六速手自一体变速箱，在开阔道路上或是感觉有些沉闷时可切换为手动模式，让车子从老老实实的驯服状态一下子脱胎换骨。
'Her face darkens slowly as she follows with the story,' Some time after I graduated from college, going out every night didn't feel that fun anymore, I was tired of it.
她继续着自己的故事，脸色也暗淡下来。“我毕业之后的一段时间每晚都出去狂欢却感觉不到任何快乐，我对这种生活方式感到厌烦。”
Maintain oxidizing conditions at all times during the digestion by adding small quantities of the hydrogen peroxide solution whenever the mixture turns brown or darkens.
在消化期间，通过加入少量的过氧化氢溶液以随时保持氧化条件，无论何时(还是译为每当？不确定)混合物变成棕色或黑色。
Maintain oxidizing conditions at all times during the digestion by adding small quantities of the hydrogen peroxide solution whenever the mixture turns brown or darkens.
在消化期间，通过加入少量的过氧化氢溶液以随时保持氧化条件，无论何时(还是译为每当？不确定)混合物变成棕色或黑色。
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