A.DJ07 B.DJ1 C.DJ6 D.DJ15 E.DJ20
A.光學(xué)經(jīng)緯儀 B.電子經(jīng)緯儀 C.游標(biāo)經(jīng)緯儀 D.GPS E.電子全站儀
A.S=D·sina B.S2=D2+H2 C.h=S·cosa D.h=D·tana E.D2=S2+H2