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【多选题】
已知 A 点坐标, AB 水平距离 D AB 和 AB 坐标方位角 α AB , A 、 B 之间的坐标增量 ΔX AB 和 ΔY AB 为( )A.
ΔX AB =D AB × sin α AB
B.
ΔX AB =D AB × cos α AB
C.
ΔY AB =D AB × cos α AB
D.
ΔY AB =D AB × sin α AB
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