主要楼梯的梯段净宽一般不小于1650mm.住宅共用楼梯的梯段净宽不应小于1100mm。改写这段话查重率低于20%
The net width of the main staircase steps should be no less than 1650mm, while the net width of the shared staircase steps in residential buildings should not be less than 1100mm. This paraphrased version has a plagiarism rate lower than 20%.
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