gōng / chéng / shī / zhèng / zài / cè / shì / fēn / sè / jìng / tóu / zài / yìn / shuā / shè / bèi / zhōng / de / chéng / xiàng / xiào / guǒ工程师正在测试分色镜头在印刷设备中的成像效果。The engineer is testing the imaging performance of the process lens in printing equipment.