当金属的覆盖层受到扎刺或划损时，受损区域的胶囊将会破裂并渗出具有恢复性的液体- - -三价铬钝化化合物。
When the metal coating is punctured or scratched, the capsules in the damaged area burst and ooze restorative liquids, in the form of compounds called trivalent chromates.
研究人员发现，铬元素的氧化物由六价铬转变为三价铬，这与画作中的铬黄色日趋变暗有关。
The researchers found that a change in the oxidation state of the element chromium (from chromium 6 to chromium 3) was linked to the darkening of chrome yellow paint.
采用直流和脉冲电沉积方式从三价铬的氯化物镀液中沉积出镍-铁-铬纳米合金镀层。
Nickel iron chromium alloy with nanocrystalline were electrodeposited from chloride bath containing trivalent chromium ions under direct and pulse current.
三维结构配位聚合物的自聚焦或自散焦效应主要受中心金属离子价层电子构型的影响。
Three dimensional coordination polymers show self defocusing or self focusing effects depending on the valence shell structures of the central ions.
关于含有砷的化合物，尤指含有三价砷。
从磺基水杨酸与三价铁离子配合物的组成及稳定常数测定实验入手，探讨了化学实验中的教学技巧问题。
By determining the composition and stable constants of sulphuric iron salicylate, this article probes into the teaching skills in chemistry experiments.
维生素C向六价铬的电子转移产生了三价铬—一种不能进入细胞内的复合物形式。
This electron transfer from vitamin C to chromium 6 produces chromium 3, a form of the compound that is unable to enter cells.
(含)磷的，亚磷的磷的，有关磷的，或含磷的，尤指含三价磷或是比类似的磷化物低一价的。
Of, relating to, or containing phosphorus, especially with a valence of3 or a valence lower than that of a comparable phosphoric compound.
检测方法基于二甲酚橙和三价铁形成的复合物显色反应，而三价铁由过氧化物氧化二价铁得到。
The assay is based upon formation of a complex between Xylenol Orange and ferric iron, which is produced by the peroxide dependent oxidation of ferrous iron.
检测方法基于二甲酚橙和三价铁形成的复合物显色反应，而三价铁由过氧化物氧化二价铁得到。
The assay is based upon formation of a complex between Xylenol Orange and ferric iron, which is produced by the peroxide dependent oxidation of ferrous iron.
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