?自动关闭防火门
... 自动关闭龙头：self-closing tap 自动关闭防火门：self closing fire door 自动鼓式海绵砂光机：automatic sponge drum sander ...
?自动封闭防火门
... fire resisting self-closing door 防火自掩门 self closing fire door 自动关闭防火门 ; 自动封闭防火门 self-closing fire door 自关式防火门 ...
自关式防火门 ; 自动关闭防火门 ; 自关开防火门
自闭式防火门
自闭式耐火门
It reveals that "combustible materials" had been stored in the stairwell and the self-closing mechanism on the fire door to the flat in which the young jockeys died was not working properly.
BBC: Malton fire death jockeys investigation continues
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。