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升降井
meaning in English
shaft
Examples
Plastics piping systems - thermoplastics shafts or risers for inspection chambers and manholes - determination of resistance against surface and traffic loading
塑料管道系统.监测室和人孔用热塑性
升降井
或升降机.测定对路表面和交通载荷的耐力
Related Words
季节升降
升降蜗杆
升降出入
升降方向舵
升降记号
升降马达
升降吊灯
升降阀
升降销
往复升降
升降进气管
升降经纱
升降镜头
升降锯
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