Magnetic compasses and binnacles - specification for transmitting systems and off - course alarms for class a magnetic compasses 磁罗盘及罗盘座规范.第8部分: a级磁罗盘的传送系统和偏航报警器规范
This led to a spin before the first safety car , and then his off - course moment on lap 46 which led to his retirement 这让他们在安全车第一次出动之前打滑了一次,之后他在第46圈偏离了赛道,从而导致了他的退赛。