| 1. | One such crystal is the ruby, which contains trivalent chromium ions dispersed in a matrix of alumina .
这样的晶体有一种叫“红宝石”，它包含的三价铬离子弥散在氧化铝的基体中。 |
| 2. | Production of activated trivalent chromium and its role in the prevention of cancers
活性三价铬的制备生物活性及抗癌作用 |
| 3. | " trivalent chromium passivation shall be used unless written exception or specification update provided .
要应用三价铬的钝化，有书面指出的例外或规格更新时除外。 |
| 4. | One such crystal is the ruby , which contains trivalent chromium ions dispersed in a matrix of alumina
这样的晶体有一种叫“红宝石” ，它包含的三价铬离子弥散在氧化铝的基体中。 |
| 5. | The plating technique of trivalent chromium used now has many disadvantages such as low stability of solution , high cost of raw material
六价铬电镀工艺存在严重的环境污染问题，利用三价铬镀铬取而代之已经迫在眉睫。 |
| 6. | For the time being , there is still no perfect trivalent chromium plating technique having been used in industry in china . thus the research on trivalent chromium plating attracts many concerns
然而目前的三价铬镀铬工艺存在着镀液稳定性差、成本较高等缺点，使其成为电镀研究领域中的热点和难点之一。 |
| 7. | In this paper , the preparation of the source of chromium was explored . i lull cell test was used to have the research on the prescription of trivalent chromium plating solution by single factor test and orthogonal test
本文探索了新型廉价铬源的制备方法，并应用赫尔槽试验，对三价铬镀铬溶液的主要配方及成份进行研究。 |
| 8. | Seen from the experiment result , it is clear that the deposited coating obtained with the trivalent chromium electrodepositing method we use is smooth , homogeneous , dense , and has good unti - erosive ability , high stiffness . the color ol ihe deposited coaling ol irivalent chromium is similar with that of hexavalent chromium . further more , this process has a good ability of homogeneous and deep depositing with simple facility , high current efficiency , and wide working current flow and even more it avoids environmental pollution
实验结果表明，本文采用的三价铬镀铬方法能电镀出镀层光滑、均匀、致密、抗蚀性好、硬度高的镀层，而且解决了镀层颜色的问题，使三价铬镀层不仅具有现行六价铬镀层的天蓝色光泽，同时还具有电流效率高、均镀能力与深镀能力好、工作电流密度宽、设备简单、无环境污染等特点。 |
| 9. | With the combination of xrf and xrd , we studied the rule of component , structure , crystal grain feature of chromium deposited coating . the law of trivalent chromium electrodepositing were extracted and contrasted with that of hexavalent chromium , laying a foundation stone for the deeper research on the process of trivalent chromium electrodeposition and it ' s industrialization
并结合xrf 、 xrd等研究手段，对不同工艺条件下所得镀层的成份、结构、品粒特征规律进行研究，提出了三价铬镀铬的电镀机理，为深入研究三价铬镀铬工艺及工业化应用奠定了基础。 |
| 10. | The technological process of trivalent chromium plating and the way of preparing the cheap chromium material were explored . the contribution of the technological parameter , such as current density , temperature , ph values and time to the trivalent chromium plating , was studied . the technological condition , which is suitable to be industrialized , was determined
通过模拟生产试验，研究了三价铬工艺流程，探讨了电流密度、温度、 ph值、电镀时间等工艺条件对三价铬成膜性能的影响规律，并确定了适合于工业化生产的工艺条件。 |
