不要把未冲洗的胶卷暴露在光照下.Don't expose undeveloped film to light.他开始在16岁时, 在冲洗的工厂工作放学以后.He started at age 16, washing out the plant after school.一种模仿水彩冲洗的蚀刻方法.A thin layer of water color ink spread on a drawing....
要求定出用作电器开关簧片的薄板中的应力集中系数.The factors of stress concentration in thin plates used as springs in electric switches were required.公司创建初时,主要加工录音机机芯种类簧片.Cassette recorder core reed is the first product when Xingtao established...