The huge challenge facing efforts to locate the wreckage of flight MH370 is not just about the conditions in some of the planet’s most inhospitable oceans. It is about narrowing down the area of the search, which at present encompasses 469,407 square nautical miles of ocean, or almost 622,000 square miles or 1.6m square km – an area just slightly smaller than Alaska.
搜尋MH370航班殘骸的巨大挑戰，不只在於目標海域海況極爲惡劣，還在於搜索範圍太大。目前，搜索範圍覆蓋469407平方海里的海域，合近62.2萬平方英里或160萬平方公里，面積僅略小於美國阿拉斯加州。
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