1) theCountry Discolorating
国变色
3) ethereal colour
《国色》
4) tarnishing
[英]['tɑ:niʃ] [美]['tɑrnɪʃ]
变色
1.
Causes for tarnishing of tin electrodeposits and solutions thereof;
锡镀层变色的原因分析及解决
2.
Tarnishing causes and tarnishing resistant measures of gold and silver-plated connectors;
接插件镀金、镀银层变色原因及防变色措施
3.
The anti-tarnishing experiments can be taken to confirm a certain alloy's anti-tarnishing capability.
银合金的特点是容易发生硫化变色,通过抗变色试验可以确定合金的抗变色性能。
5) tarnish
[英]['tɑ:nɪʃ] [美]['tɑrnɪʃ]
变色
1.
Tarnishing Mechanism and Anti-tarnishing Techniques of Gold and Silver Coins;
金银币变色机理和抗变色工艺研究
2.
The effects of various corrosive gases on silver tarnishing and the corrosion products in the tarnish layer were dis- cussed,especially hydrogen sulfide and silver sulfide.
讨论了大气中各种腐蚀性气体对银变色的影响,以及变色膜中各种腐蚀产物的成分及状态,以硫化氢气体和硫化银为主要对象进行阐述,侧重介绍了最近30年的研究结果。
3.
In natural environment, tarnish was observed on the surface of a commemoration silver coin of China.
银纪念币在大气环境中表面发生变色,失去原有的金属光泽。
6) discoloration
[英][,dɪs,kʌlə'reɪʃn] [美]['dɪs'kʌlə'reʃən]
变色
1.
Research in PVC-U profile discoloration by sulfurous pollutants;
关于硫化污染引起PVC-U型材变色的研究
2.
Effects of Acid and Alkali on Discoloration Prevention of Paulownia Wood;
酸碱对防止泡桐木材变色的影响
3.
Controlling Measures for Yunnan Hemlock Discoloration during Drying;
云南铁杉干燥过程中变色的控制
补充资料：国变
1.国家的变故﹑动乱。 2.特指国家因政权更迭﹑改朝换代而发生的变乱。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条