跑光

⒈ 胶片、感光纸等感光材料因封闭不严而感光。英sensitive materials are sensitive to light because lacking of stealing airtight;...

密闭

⒈ 严密封闭杜绝出入。例大门密闭着。英seal off;密闭[ mì bì ]⒈ 紧密不漏气或密不通风。例密闭货舱。英airtight;...

密封

⒈ 严密地封闭。例密封舱。密封容器。用于密封函件和遗嘱的印章。英seal off (up); seal airtight; close;...