The fire began in a lift shaft and spread to the roof.

大火从电梯通道里开始，然后蔓延到了屋顶。

The elevator works like this: the car which carries passengers travels up and down the lift shaft between guide rails.

电梯的工作原理是这样的：载有乘客的电梯厢在升降井里沿着两旁的导轨上下运行。

The staircase had become redundant during previous renovations and was partly dismantled to make room for a lift shaft.

楼梯已经在之前的装修中变得多余，部分被拆除，为电梯提供空间。

The wire ropes which support the car are fixed to a heavy counterweight which moves up and down the lift shaft on separate guide rails.

支撑电梯厢的钢丝绳另一端固定在一个平衡配重上。 平衡配重在升降井里沿着单独的导轨上下移动。

The lift shaft has the advantage that since the lift shaft adopts a lifting mechanism, passengers can get on and off the bus more conveniently and easily.

本实用新型的有益效果是：由于是采用了升降机构，使得上、下车更方便、省力。