A.≥0.1mm B.≥0.2mm C.≥0.3mm D.≥0.35mm
A.≤lmm B.≤1.5mm C.≤2mm D.≤2.5mm
A.電阻制動 B.基礎(chǔ)制動裝置制動 C.手制動裝置制動 D.蓄能制動器制動