楼梯变成平行活动空间。
在对某楼梯改造为自动扶梯的工程设计中，在考虑选用交叉布置还是平行布置时，应满足扶梯净空等使用要求。
In a design of reconstructing a stair into an escalator, the headroom of the escalator should be thought over when the escalator is decided to be disposed in cross or parallel.
此外，它连接着地下室和上无所不能，通过白钢形的楼梯和电梯，螺旋平行。
Furthermore, it connects with the basement and the upper pivoted parallelepiped through a white steel spiral shaped staircase and an elevator.
此外，它连接着地下室和上无所不能，通过白钢形的楼梯和电梯，螺旋平行。
Furthermore, it connects with the basement and the upper pivoted parallelepiped through a white steel spiral shaped staircase and an elevator.
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