single leaf door 单扉门 ; 单扇门 ; 单房门
Single leaf damper 单页风口
single leaf spring 单片式钢板弹簧
single leaf bascule bridge 单扇上开桥
single-leaf swing bridge 单叶平转桥 ; 单叶平旋桥
single-leaf bascule bridge 单叶竖旋桥
class single-leaf fireproof glass 单片防火玻璃
Marine weathertight single-leaf steel doors 船用风雨密单扇钢质门
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