When scaffold work, the adjustable shelf and the bracket fixing use to attach the wall bolt and the wall anchor, two between not relative motions.

当脚手架工作时，活动架和固定架均用附墙螺栓与墙体锚固，两架之间无相对运动。

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Attach the wall alternately through the adjustable shelf and the bracket fixing, rises and falls mutually, scaffold then along wall on reservation hole cascade fluctuation.

通过活动架和固定架交替附墙，互相升降，脚手架即可沿着墙体上的预留孔逐层升降。

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