求人给我翻译下这篇英语文章!急!高分啊!
Magnesiumisanothermineralwenowobtainbycollectinghugevolumesofoceanwaterandtreatingitwithchemicals,althoughoriginallyitwasderivedonlyfrombrinesorfromthetreatmentofsuchmagnesium-containingrocksasdolomiteofwhichwholemountainrangesarecomposed.Inacubicmileofseawaterthereareaboutfourmilliontonsofmagnesium.Sincethedirectextractionmethodwasdevelopedabout1941.Productionhasincreasedenormously.Itwasmagnesiumfromtheseathatmadepossiblethewartimegrowthoftheaviationindustry.ForeveryairplanemadeintheUnitedStates(andinmostothercountriesaswell)containsabouthalfatonofmagnesiummetal.Andithasinnumerableusesinotherindustrieswherealightweightmetalisdesired,besidesitslongstandingutilityasaninsulatingmaterial,anditsuseinprintinginks,medicines,andtoothpastes.
一定要人工翻译啊!
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