To find out why, researchers used sophisticated X-ray analyses to determine the exact chemical composition of the paint as it browns.
为找出原因，研究人员用精密X射线分析仪测定了变成褐色颜料的精确化学成分。
Then, I filled up the shelves with all kinds of paint and painting tools. These are the elements I used to give some color on this second composition layer.
然后，我将这些架子上摆上不同的颜料和绘画工具。这些就是我在第二层组合图层中添加的一些色彩元素。
The composition, pick-up and packing, test method of tiny amount of paint for examination at a case crime scene and their application in investigating criminal case are discussed.
论述了刑事案件现场上微量涂料检材的组成、提取与包装、检验方法以及在侦破刑事案件中的应用。
The color and film performance of emulsion paint are closely related with the composition of base paint.
乳胶色漆的颜色准确性和涂膜性能与基础乳胶漆的组成关系密切。
Formation mechanism, material selection, composition and pro-cess control of water-in-water multicolor decorative paint are discussed separately.
就水包水型多彩花纹涂料的形成机理、材料选择、配方组成、生产工艺控制分别进行了论述。
The paint composition has not only excellent yellowing resistance and high weather resistance, but also physical and chemical performance similar to that of white PU surface paint.
该涂料组合物不但有很好的耐黄变性能和耐候性，而且还具有PU 白面漆一样的物理化学性能。
Composition based on aqueous paint composition, particularly a lacquer or a varnish, and based on an aqueous colloidal dispersion of cerium.
基于水性漆，尤其是基于色漆或清漆，并基于胶体水性铈分散体的组合物。
The inspection methods of paint evidence in forensic science, in terms of the appearance test, microchemical method, composition test and etc.
法庭科学中塑料物证的检验方法有很多，一般可通过外观检验、微量化学法、塑料成分检验等来进行。
Then the optimum composition of the Zn-Cr coating paint was researched.
之后利用正交实验研究了锌铬膜涂料基本组成的最佳配比。
The figure, in dark pants and red blazer, is flecked with strokes of blue paint that match the deep background of the canvas, suggesting his immateriality and the imagined space of the composition.
画中人身穿深色长裤与红色夹克，脸上夹杂著与深色背景相近的蓝色，表现出他的虚幻与想像的构图空间。
The determination basis of the formula and the composition of the paint strippers were described in detail. And the applications of the paint strippers in the future was prospected.
详细叙述了脱漆剂配方的确定依据，并对其应用前景提出了展望。
Originally the composition of landscapes is not to paint a real picture as we see it, but to depict by means of a bird's eye view, namely, to diminish the subject matter in a nutshell.
原来山水画的构图，不是对景写实，而是用鸟瞰的方法，将真景缩小，然后加以描写的。
Originally the composition of landscapes is not to paint a real picture as we see it, but to depict by means of a bird's eye view, namely, to diminish the subject matter in a nutshell.
原来山水画的构图，不是对景写实，而是用鸟瞰的方法，将真景缩小，然后加以描写的。
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