... 升降机局部维修计划：lift semi-modernization programme 升降机井门：elevator shaft gates 升降机井：elevator shaft ...
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... hoistway telltinge 井道内信号灯 hoistway door 厅门 ; 电梯通道门 ; 升降机井门 hoistway equipment 井道设备 ...
基于72个网页-相关网页
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