n.天文馆，天象仪...

plantation的音标：plantation的英式发音音标为：[plɑ:n'teɪʃn]plantation的美式发音音标为：[plæn'teɪʃn]...

Characterzation: high quality quartz bulb, biplanar filament which enables increased illumination, uniform color temperature and luminous flux.特色: 优质的石英泡壳, 卓越的双排丝结构,独特的防爆装置,亮度更高, 使用更安全....

n.扁平（角膜），变平作用...

n.拉普兰...