缓和曲线采用切线支距法计算坐标的公式为()
A:x=ι-ι4/(40R2I02)+ι9/(3456R4I04)…
B:x=ι-ι5/(40R2I02)+ι9/(3456R4I04)…
C:x=ι-ι3/(40R2I02)+ι9/(3456R4I04)…
D:x=ι-ι2/(40R2I02)+ι9/(3456R4I04)…
出自:测量员