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【多选题】
采用贝克曼检测路面弯沉时,测试步骤正确的是( )。A.
在测试路段布置测点， 测点路面行车车道的带上，并用白油漆或粉笔画上标记
B.
将试验车后轮轮隙对准测点前3-5cm处的位置上
C.
将弯沉仪插入汽车后轮之间的缝隙处，安装 百分表并调零
D.
测定者吹哨发令指挥汽车缓缓前进，当表针转到最大值时，迅速读取初读数 L 1 。汽车仍在继续前进，待汽车驶出弯沉影响半径（约 3m 以上）后停止。待表针回转稳定后，再次读取终读数 L 2
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