Eight alloys were measured before and after tarnish by chromometer.
探讨低贵合金变色的影响因素。
Eight alloys were measured before and after tarnish by chromometer.
探讨低贵合金变色的影响因素。
Moisture leads to the tarnish of the silverware.
湿
使得银器毫无光泽。
His bad behaviour has tarnished the good name of the school.
他行为不轨, 败坏了学校的声
。
Brass tarnishes quickly in wet weather.
潮湿时
铜很快
光泽。
His reputation was tarnished.
他的声受到玷污。
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