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poling board
eng.geol. 壁板; 撑板
tech. 电缆沟的壁板; 隧洞洞顶防塌护板; 堰板; 支撑板; 沟槽竖撑板; 挡土板; 垂直挡土板; 插板; 隧洞矢板; 混凝上模板; 挡土墙的挡板
poling board: 7 phrases in 2 subjects
Construction1
Technology6