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98度30分24秒等于多少度
人气:214 ℃ 时间:2020-02-17 14:34:07
解答
98°30′42″
=98°30′+(42÷60)′
=98°30′+0.7′
=98°+30.7′
=98°+(30.7÷60)°
=98°+0.51°
=98.51°
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