英汉例句

• 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。

• trivalent chromium plating and chromium alternative process and their characteristics were described, and research trend of trivalent chromium plating was presented as well.

  介绍了三价铬电镀和代铬电镀工艺及其性能特点，提出了三价铬电镀的研究方向。

• the decorative and hard functional trivalent chromium plating patents and papers abroad are reviewed.

  综述了国外三价铬装饰性电镀的专利及近几年三价铬功能性镀厚铬研究的动态。

• 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。

• development course of trivalent chromium plating was reviewed and new technology of sulphate trivalent chromium plating was introduced.

  回顾了三价铬电镀的发展历程，介绍了硫酸盐体系三价铬电镀装饰铬的新工艺。

• a new trivalent chromium plating process using formate-carboxylic acid salt as complexing agents is studied in this paper.

  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。

• 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。

• sulfate trivalent chromium plating developed very quickly in recent years because of no chlorine emitting and no equipment corrosion.

  近年来，因其具有阳极无有害气体析出、不腐蚀设备等优点，所以硫酸盐体系三价铬电镀发展迅速。