A.39°54.4′N(xiāo)B.39°54′4″C.39°54′4S
A.北緯.東經(jīng)取負(fù)值B.北緯.東經(jīng)取正值C.南緯.西經(jīng)取正值
A.赤道B.緯度45°C.兩極