elevator shaft gates

同义词释义

1)elevator shaft gates,升降机井门2)hoistway door,升降机井门3)lifting and drop,升降4)lifting,升降5)fluctuation,升降6)lift,升降7)rise,升降8)automatic rising-lowering,自动升降9)differential fluctuation,差异升降10)electric pole fluctuation,电极升降