30°12′8″-18°40′12″等于多少

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30°12′8″-18°40′12″等于多少30°12′8″-18°40′12″等于多少30°12′8″-18°40′12″等于多少30°12′8″-18°40′12=29°71''68"-18°40''

30°12′8″-18°40′12″等于多少
30°12′8″-18°40′12″等于多少

30°12′8″-18°40′12″等于多少
30°12′8″-18°40′12
=29°71'68"-18°40'12"
=11°31'56"