darkening

A thick cloud rolled rapidly across the sands , darkening the sky with a dense green haze.

只看见一片稠密的云雾正快速的席卷沙漠, 那浓得化不开的绿色阴霾遮蔽天日.

My skin turning to a different hue . My black hair darkening.

我的黄皮肤变得更黄, 我的黑发变得更黑.

The stars and moon in The Starry are unusually bright, their light swirling above darkening hills.

《星夜》中的星星和月亮异常地明亮, 它们的光亮在阴霾的山丘上打转.

Significance of new stellar limb darkening linear empirical laws

新的恒星临边昏暗线性经验公式的意义

Conclusion: Teeth darkening caused by trauma or pulp degeneration are candidate for intracoronal laser teeth bleaching.

结论：牙齿创伤和牙髓分解是冠内变色的常见原因，激光冠内漂白是治疗这种变色的有效手段。

Reduction in growth rate and vigour. Darkening of the leaves. Decreased drought resistance.

生长速度和活力下降。叶色变暗。抗旱能力下降。

It seemed to draw light out of the darkening earth,

月亮似乎是从渐渐暗下去的大地汲取了光明。

The room was darkening. He turned over towards the light and lay gazing into the glass paperweight.

屋子里开始发暗, 他转身凑着光亮,盯着玻璃镇纸看.

Objective: the treatment protocol was designed to assess the efficacy of intracoronal laser teeth bleaching in the treatment of nonvital teeth darkening.

本文的研究目的是探讨激光冠内漂白治疗死髓牙变色的治疗作用。

The Properties of Fixing Agent and Its Colour Darkening Effect

固色剂的性能和深色作用

The minimal erythema dose ( MED) to UVB and UVA, and the immediate pigment darkening reaction ( IPD) to UVA radiation were measured for each type.

分别测定其对UVB和UVA的最小红斑量（MED）以及对UVA的即刻色素反应（IP）。

Computer screens are darkening in China, and it's not because the nation's netizens are powering down.

中国的许多电脑屏幕都成了黑沉沉的一片, 这可不是因为中国网民关机了.

Down one side of his face the flesh was darkening.

他的脸有一边的下面开始发青.

So studying and solving the problem of darkening circle of energy-saving lamps are very realistic.

所以研究和解决节能灯的黑化问题非常具有现实意义。

Glanced down from behind his chimneys at the darkening faces by the fountain below, and sent word to the sacristan who kept the keys of the church, that there might be need to ring the tocsin by-and-by.

他又躲在烟囱后偷看屋下泉水边黑暗中的面孔，同时通知了掌管教堂钥匙的圣器保管员，说不定过一会儿需要敲钟。

It was shown that second-order cascading can be used for construction of intensity induced polarization rotators, polarization interferometers with self induced transparency and darkening and intracavity mode-locking devices.

同时表明，利用二阶非线性串级效应还可用来构造与光强有关的偏振旋转器、具有自诱导透明或自诱导黑暗效应的偏振干涉仪以及腔内锁模等装置。

Thus hair-darkening is the answer to regain the shiny and healthy dark color look of vibrant hair outlook.

因此染黑头发是重拾明亮及健康头发的答案。

And the outlook for foreign sales is darkening too.

出口销售的前景也黯淡了.

Femtosecond laser induced darkening and permanent refractive index changes in K9 glass under different radiation conditions were experimentally studied.

对不同辐照条件下近红外飞秒激光在K9玻璃内部诱导产生的暗化现象和永久性折射率改变进行了实验研究。

Bats flitted about in the darkening sky.

蝙蝠在暮色苍茫的天空中飞来飞去.

The Experiment on the Application of Darkening Agent SA for Polyamide

锦纶增深剂SA的应用试验

Jeff: Overhead, the sky was darkening.

杰夫: 在他的头顶上, 天空是一片的黑暗.

It was clouding over outside and the lake was darkening.

外面阴云四布,湖上阴暗下来.

Nikol glanced around the clearing, slowly darkening with the coming of night.

妮可扫视着随夜晚来临而逐渐朦胧的旷野.

Femtosecond Laser Induced Darkening and Refractive Index Change in K9 Glass

飞秒激光辐照K9玻璃引起的暗化和折射率变化

Melanoma: Dark-coloured malignant tumour of skin cells that produce the protective skin-darkening pigment melanin.

黑素瘤: 一种从黑素色素皮肤细胞产生的黑色肿瘤.

But this time, as business leaders shared their experiences, one could almost feel the clouds darkening.

但这一次, 当商界领袖们交流看法时, 几乎都感觉到前景正变得更加黯淡.

A fine shadow was flung over the deep green meadow, darkening all.

美丽的夜幕已经降临到深绿色的草地上, 一切都给吞没在黑夜之中.

They used Egyptian kohl for darkening the eyelids, powdered chalk for whitening the skin, and a red colouring matter for the cheeks.

她们用埃及化妆油膏来把眼睑涂黑，用粉来使皮肤洁白，双颊使用红色的物质。

Now, the mood is darkening.

现在, 他们心情忧郁.