dry film短语¹⁴⁴⁹⁷²⁺² 基本例句 干膜 Dry Film Exposure: A negative photo tool or artwork is imaged into the dry/span> film, on both sides of the copper clad, through UV light exposure leaving a positive image in the dry film. 曝光:将负片底片覆盖在覆铜板两面,经过紫外光照射曝光后在干膜上产生正片图像。 tianya