偏头痛的其他诱因还有电脑的视频显示器和灯管照明。Other causes of migraine are VDU screens and strip-lighting.有金属部件的照明装置都应该走地线。Light fittings with metal parts should always be earthed.房间里仅靠这一盏灯照明。The room was lit by only the one light....
Thin film electroluminescent display is one of the main flat panel displays.薄膜电致发光显示是平板显示的主要技术之一.Polyfluorene and its derivatives is one of the most promising electroluminescent polymers.聚芴衍生物是最有发展潜力的电致发光材料之一.Provided ar...