It is unknown what causes this colouration.
它是不明原因，这成色。
It seemed that the product had a light coating, based on the colouration and the feel.
看来，该产品的轻型涂料的基础上，着色和感受。
With this special requirement of surface colouration, general dyeing process is not available.
对于这种表面着色的特殊要求，一般染色工艺是达不到的。
Live, descriptive and at the same time expressive colouration is only a part of our endeavour.
因为活泼、有叙述性及富于表现的色彩？是我们努力的一部分。
They added that the canids were "larger, more slender and sometimes with a more whitish colouration".
他们还说这种犬科动物较一般金豺“更大，更苗条，有时毛色也更淡”。
The contents was determined by thin layer scanner with double wavelength after the dithizone colouration.
双硫腙显色后，用双波长薄层扫描仪测定。
Our work suggests that the carotenoid colouration of human skin may represent a similar advertisement of health and fertility.
这些鸟类嘴巴和羽毛的颜色也是受类胡萝卜素这种抗氧化剂影响的，就像它影响人的肤色一样。
The formation of zirconium -calcium -alizarine red s mix - polynuclear complex and its co-colouration effect have been investigated.
报道了锆-钙-茜素红s异多核配合物的形成，共显色效应的光度特性及测定锆的最佳条件。
Through analyzing the properties of PVC extruded materials, the main factors causing the colouration of PVC extruded product were investigated.
通过对PVC挤塑材料性能的分析，探讨了影响PVC挤塑制品着色的主要因素；
In fact, the depiction of the burning clouds was only one brush of rosiness in the bright-colored and massive colouration in the whole piece of literature.
其实，对于火烧云的描绘，只是整部作品斑斓厚重的色彩中的一抹轻红。
Live, descriptive and at the same time expressive colouration is only a part of our endeavour. we also stress brushwork, as the best of traditional schools do.
因为活泼、有叙述性及富于表现的色彩?是我们努力的一部分。我们更强调笔法，而且重视的程度绝对不减于传统学派。
And they may well have been doing the animal a favour, as albinos are easy prey out at sea as they lack the colouration to blend in like their grey coloured relatives.
渔民们把这只海豚卖到水族馆可能倒是帮了它一个大忙，因为这只海豚在海上很容易被捕猎者发现，因为它不能像它灰色的同胞一样混迹于大海中。
The colouration of Aluminum film with mirror face was introduced with the addiction of proper amount of activating agent in metallographic mirror bright coating dye bath.
介绍了在金相镜光涂料染色浴中加入适量的活性剂，对具有镜面的铝膜（材）表面进行染色的方法； 并从实验中得出了所染颜色与时间，匀染剂量的关系曲线。
In this paper the working principles and process technology of the electrolytic colouration operation tor fhe automobile window frames made of aluminium alloy are presented.
介绍了铝合金汽车窗框电解着色的工作原理和工艺规范等。
By assessing the colouration and state of health of 195 free-living urban pigeons, they found that darker pigeons had lower concentrations of a blood parasite called haemosporidian.
通过对195只在城市野鸽的颜色和健康状况的评估，他们发现深色的鸽子血液里含有较少的名为haemosporidian的寄生虫。
Although bottlenose dolphins (Tursiops) are usually grey, this extremely rare creature is an albino and has no colouration - apart from a tendency to turn pink when feeling flushed.
尽管宽吻海豚通常是灰色的，这只极为罕见的宽吻海豚却因为是白化变种而没有色彩——除了兴奋时会变粉。
Although bottlenose dolphins (Tursiops) are usually grey, this extremely rare creature is an albino and has no colouration - apart from a tendency to turn pink when feeling flushed.
尽管宽吻海豚通常是灰色的，这只极为罕见的宽吻海豚却因为是白化变种而没有色彩——除了兴奋时会变粉。
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