相关考题
-
单项选择题
倾斜式或曲线式导轨架的齿轮齿条式施工升降机,导轨架架设高度大于200m时,其导轨架正面的垂直度偏差应不大于()
A.130mm
B.140mm
C.150mm
D.160mm
A.130mm
B.140mm
C.150mm
D.160mm
微信扫一扫,加关注免费搜题