详细解释:【计】 栈空, 系统扩充
【医】 硒(34号元素)
英语解释：
名词 se:
a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)同义词：selenium, atomic number 34