Fair: Objectionable change in appearance due to discoloration or etch, possibly resulting in deterioration of function over an extended period of time.
Fair: Objectionable change in appearance due to discoloration or etch, possibly resulting in deterioration of function over an extended period of time.
一般：由于变色或腐蚀，外观有不雅改变。如果延长测试时间，有可能造成功能的毁损。