FF1XXXXXXXXX@qqonaochou1QQQQQQ151XXXX1010105-74-6405-7151731010101517310..............1GodselectAPPS2sin2=2sincoscos2=cos2-sin2=2cos2-1=1-2sin2T2:tg2=19.8dR+r+d=R+r19.83.569.3169.310.53.14H70......................12...................1