词汇	light pen device
释义	light pen device n.光笔装置
随便看	urban engineering structures Urban enlarging urban enterprise zone urban enterprise zones urban entironment urban entomology urban entrance urban entrance region urban environment urban environmental urban environmental color urban environmental design urban environmental developmental Urban Environmental Facilities urban environmental factors urban environmental function urban environmental geochemistry urban environmental geology urban environmental geo-technology urban environmental governance urban environmental history urban environmental hygiene urban environmental hygiene facilities Urban Environmental Infrastructure urban environmental management