BH-88 trivalent chromium sulfate plating process was chosen.
选用BH- 88硫酸盐三价铬镀铬工艺。
The history of trivalent chromium electroplating was looked back.
回顾了三价铬镀铬的历史。
Trivalent chromium plating can be divided into chloride and sulfate systems.
三价铬电镀分为氯化物体系和硫酸盐体系。
One means of accomplishing this end is to add trivalent cations to the water.
实现这一目的的一种方法是将三价阳离子加入水中。
The usual source of trivalent cations in water treatment is alum (aluminum sulfate).
在水处理中三价阳离子通常来源于明矾（硫酸铝） 。
The chromium deposition velocity of trivalent chromium electroplating was researched.
对三价铬电解液镀铬的沉积速度进行了实验研究。
Trivalent chromium and hexavalent chromium are two main states of the chromium in foods.
三价铬及六价铬是食品中微量元素铬的两种主要存在价态。
Galvanized to trivalent chromium and hexavalent chromium passivation passivation process.
镀锌为三价铬钝化及六价铬钝化工艺。
The major advantages and disadvantages of trivalent chromium electroplating were introduced.
介绍了三价铬镀铬的主要优点与缺点。
Formate-A acid system was a sulfate trivalent chromium plating process with low concentration.
甲酸-羧酸a体系是一种低浓度的硫酸盐三价铬电镀工艺。
The content deviation between total cerium and ceric is just the content of trivalent cerium in the sample.
总铈含量与四价铈之差为氢氧化铈中三价铈含量。
A trivalent verb should be a verb that can control three obligatory semantic elements in basic semantic structure.
三价动词是指在动词基本语义结构中能够携带三个强制性语义成分的动词。
Shenzhen (excellent) Ante Precision Industry Co. , Ltd. specializes in plastic plating, green trivalent chromium plating.
深圳市（卓越）安特精密工业有限公司专业致力于塑胶电镀、环保三价铬电镀。
In acid and alkali soil, there are mainly indissoluble bivalent or trivalent phosphates, which cannot be utilized by plants.
在酸碱性土壤中，磷主要以植物难以吸收利用的难溶性二价或三价阳离子的形式存在。
It's urgent to develop the technique of trivalent chromium plating because of the heavy pollution of hexavalent chromium plating.
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。
The bath compositions of trivalent chrome black passivation for zinc-iron alloy coating were optimized by orthogonal test method.
采用正交试验法对锌-铁合金镀层三价铬黑色钝化工艺进行优化，并研究了工艺参数对钝化膜外观和耐蚀性等影响。
The effects of stimulating or inhibiting of trivalent arsenic on DNA synthesis were always stronger than that of pentavalent arsenic.
不论对细胞DNA合成的促进作用还是抑制作用，三价砷比五价砷的作用更强。
The applicable fields of alkaline cyanide-free zinc plating and acidic zinc plating before trivalent chromium passivation were proposed.
提出应用于三价铬钝化前的碱性无氰镀锌及酸性镀锌的适用场合。
In this paper, three types of bath for trivalent chromium plating are gained: chloride-glycine bath, chloride-U bath and sulfate-oxalic bath.
本文新近研究了一种以甲酸盐-羧酸盐作为络合剂的三价铬电镀新工艺，并对该溶液和镀层进行了性能测试。
Following the alkaline zinc plating process, the trivalent chromium passivation process is conducted to provide a protection layer for zinc coating.
碱性溶液所获得的镀锌镀层，采用三价铬溶液钝化。
Trivalent chromium in dissolved state occupies a principal position, so that ratio of trivalent chromium to total dissolved chromium is more than 80%.
六价铬对总铬比率低于3%，是最次要的形态；三价铬对总溶解铬的比率在80%以上，所以三价铬在溶解态中占主要形态。
One relatively recent technique which has found some favor involves the inclusion of soluble trivalent antimony derivatives in the slurry during mixing.
一种比较近代的、人们好采用的技术是在混合过程中加入可溶性的三价锑衍生物。
Nickel iron chromium alloy with nanocrystalline were electrodeposited from chloride bath containing trivalent chromium ions under direct and pulse current.
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。
The resulting "trivalent" vaccine provokes the patient's immune system into producing antibodies, and that primes it for an attack by the worrying strains of flu.
所产生的“三价疫苗”刺激患者的免疫系统产生抗体，为流感病毒株的可能袭击做好准备。
Manufacturers have still had to produce the usual “trivalent” vaccine for this year’s seasonal flu, plus a wholly different vaccine for the more deadly H1N1 strain.
制药商仍然要生产治疗普通季节性流感的三价流感疫苗，如今又多了项任务，那就是生产对抗致死性H1N1型流感的疫苗。
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.
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。
The efficient luminescence centres were found to be trivalent neodymium ions which, by a crystal field analysis, were shown to be located at zinc substitutional sites.
三价钕离子是有效的发光中心，利用晶场分析，三价钕离子主要是处在锌的替代位置。
Trivalent chromium electroplating not only can reduce pollution obviously and save pollution treatment cost, but also can improve the quality of electroplating products.
三价铬电镀不仅可明显减少电镀对环境的污染，节省大量的污染治理费用，而且还可提高电镀产品的质量。
Trivalent chromium electroplating not only can reduce pollution obviously and save pollution treatment cost, but also can improve the quality of electroplating products.
三价铬电镀不仅可明显减少电镀对环境的污染，节省大量的污染治理费用，而且还可提高电镀产品的质量。
应用推荐