closed in封闭, 包围
closedadj.关闭的;封闭的;停业的动词close的过去式和过去分词.
closed-celladj.独立气泡的; 密闭气泡的
closed vessel[化] 密闭容器
closed subset闭合子集
closed mining封闭开采
closed-loop封闭环
Closed colong封闭群
closed reflux闭管回流
closed filter封闭式滤池,闭滤子
closed-down停机
closed mixing密炼