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1·They dismissed him from his job under colour of saving the company's money.

他们以节约公司经费为名，把他解雇了。

2·All colour fades – especially under the impact of direct sunlight.

所有颜色都会褪色–尤其是在直射阳光的影响下。《柯林斯英汉双解大词典》

3·Under no circumstances may recipes be used for these two types of desserts which consists only of sugar, milk, colour and gelatine.

在任何情况之下，都不可以只用糖、奶、色素和胶质制作这二类型的餐后甜点。

4·A large number of visual data were obtained by a set of observers assessing colour-differences of sample pairs presented under 16 groups of parameters with grey-scale method.

由一组观察者采用灰标法判断以16组不同参数显示的色样对的色差，获取了大量的观察数据。

5·The colour mechanism of imitated copper-red glaze was studied under the use of XPS.

用X射线光电子能谱仪(XPS)研究了仿制的铜红袖的着色机理。

6·This paper studies on the dissolved iron of the extracted juice under different freshness of sugar cane. The results show that colour of the juice is linear dependence to the iron content.

研究了不同的甘蔗新鲜度下，铁在压榨蔗汁中的溶出量，表明了蔗汁中铁的含量与其色值有明显的相关关系。

7·It also points out that under relevant conditions, the correcting method for colour nonequilibrium has guiding significance in the developing and printing process of colour positive.

指出了相应情况下，颜色不平衡的校正方法。对于彩色正片的洗印过程有一定的指导意义。

8·Photochromic compound is characterized of changing from one colour to another under UV radiation and returned to be colourless after removal of the light source.

其性能显示出某个颜色的变化，在紫外光辐射下曝光从一个颜色变成另一种颜色。然后在撤换光源后又转变回无色状态。

9·Under proper conditions, it can efficiently enhance the colour fastness of the fabric dyed with water soluble dyes and after fixation little colour change will occur on the dyeings.

该固色剂在适当的条件下能有效地改善水溶性染料的染色牢度，固色后基本无色变现象。

10·Part of the crack is cut by drill, the crack surface is dust-colour under naked eyes.

钻孔截取裂纹局部，肉眼可见裂纹表面呈暗褐色。