卷制鋼管32536mm,長50m,42636mm,長80m,現(xiàn)在鋼板尺寸為6m³1.2m,重0.337t,問卷制兩種鋼管用料多少張?兩種管各用多少?
測量水泵對輪徑向晃動記錄,如圖所示,求對輪的徑向晃度?