日本成功分离可燃冰 或化解能源危机
<p><span word="This">This</span> <span word="NASA">NASA</span> <span word="satellite">satellite</span> <span word="image">image</span> <span word="received">received</span> <span word="on">on</span> <span word="April">April</span> 7, 2005 <span word="shows">shows</span> <span word="Shikoku">Shikoku</span> <span word="island">island</span> (<span word="bottom">bottom</span>, <span word="left">left</span>) <span word="western">western</span> <span word="Japan">Japan</span>. <span word="A">A</span> <span word="huge">huge</span> <span word="layer">layer</span> <span word="of">of</span> <span word="methane">methane</span> <span word="hydrate">hydrate</span> <span word="containing">containing</span> 1.1 <span word="trillion">trillion</span> <span word="cubic">cubic</span> <span word="metres">metres</span> <span word="in">in</span> <span word="natural">natural</span> <span word="gas">gas</span> <span word="is">is</span> <span word="believed">believed</span> <span word="to">to</span> <span word="lie">lie</span> <span word="in">in</span> <span word="the">the</span> <span word="ocean">ocean</span> <span word="floor">floor</span> <span word="off">off</span> <span word="the">the</span> <span word="coast">coast</span> <span word="of">of</span> <span word="Shikoku">Shikoku</span>, <span word="officials">officials</span> <span word="said">said</span>.</p><p><span word="Japan">Japan</span> <span word="said">said</span> <span word="Tuesday">Tuesday</span> <span word="it">it</span> <span word="had">had</span> <span word="successfully">successfully</span> <span word="extracted">extracted</span> <span word="methane">methane</span> <span word="hydrate">hydrate</span>, <span word="known">known</span> <span word="as">as</span> "<span word="fire">fire</span> <span word="ice">ice</span>", <span word="from">from</span> <span word="its">its</span> <span word="seabed">seabed</span>, <span word="possibly">possibly</span> <span word="unlocking">unlocking</span> <span word="many">many</span> <span word="years">years</span>' <span word="worth">worth</span> <span word="of">of</span> <span word="gas">gas</span> <span word="for">for</span> <span word="the">the</span> <span word="resource">resource</span>-<span word="starved">starved</span> <span word="country">country</span>.</p><p><span word="In">In</span> <span word="what">what</span> <span word="they">they</span> <span word="are">are</span> <span word="claiming">claiming</span> <span word="as">as</span> <span word="a">a</span> <span word="world">world</span> <span word="first">first</span>, <span word="a">a</span> <span word="consortium">consortium</span> <span word="is">is</span> <span word="drilling">drilling</span> <span word="for">for</span> <span word="the">the</span> <span word="hydrate">hydrate</span>, <span word="a">a</span> <span word="fossil">fossil</span> <span word="fuel">fuel</span> <span word="that">that</span> <span word="looks">looks</span> <span word="like">like</span> <span word="ice">ice</span> <span word="but">but</span> <span word="consists">consists</span> <span word="of">of</span> <span word="very">very</span> <span word="densely">densely</span>-<span word="packed">packed</span> <span word="methane">methane</span> <span word="surrounded">surrounded</span> <span word="by">by</span> <span word="water">water</span> <span word="molecules">molecules</span>, <span word="one">one</span> <span word="kilometre">kilometre</span> (3,300 <span word="feet">feet</span>) <span word="below">below</span> <span word="sea">sea</span> <span word="level">level</span>.</p><p><span word="The">The</span> <span word="solid">solid</span> <span word="white">white</span> <span word="substance">substance</span> <span word="burns">burns</span> <span word="with">with</span> <span word="a">a</span> <span word="pale">pale</span> <span word="flame">flame</span>, <span word="leaving">leaving</span> <span word="nothing">nothing</span> <span word="but">but</span> <span word="water">water</span>. <span word="One">One</span> <span word="of">of</span> <span word="it">it</span> <span word="is">is</span> <span word="estimated">estimated</span> <span word="to">to</span> <span word="contain">contain</span> <span word="many">many</span> <span word="times">times</span> <span word="the">the</span> <span word="equivalent">equivalent</span> <span word="volume">volume</span> <span word="of">of</span> <span word="methane">methane</span> <span word="in">in</span> <span word="gas">gas</span> <span word="form">form</span>.</p><p><span word="The">The</span> <span word="consortium">consortium</span>, <span word="led">led</span> <span word="by">by</span> <span word="Japan">Japan</span> <span word="Oil">Oil</span>, <span word="Gas">Gas</span> <span word="and">and</span> <span word="Metals">Metals</span> <span word="National">National</span> <span word="Corporation">Corporation</span>, <span word="began">began</span> <span word="initial">initial</span> <span word="work">work</span> <span word="in">in</span> <span word="February">February</span> <span word="last">last</span> <span word="year">year</span> <span word="and">and</span> <span word="on">on</span> <span word="Tuesday">Tuesday</span> <span word="started">started</span> <span word="a">a</span> <span word="two">two</span>-<span word="week">week</span> <span word="experimental">experimental</span> <span word="production">production</span>, <span word="an">an</span> <span word="economy">economy</span>, <span word="trade">trade</span> <span word="and">and</span> <span word="industry">industry</span> <span word="ministry">ministry</span> <span word="official">official</span> <span word="said">said</span>.</p><p>"<span word="It">It</span> <span word="is">is</span> <span word="the">the</span> <span word="world">world</span>'<span word="s">s</span> <span word="first">first</span> <span word="offshore">offshore</span> <span word="experiment">experiment</span> <span word="producing">producing</span> <span word="gas">gas</span> <span word="from">from</span> <span word="methane">methane</span> <span word="hydrate">hydrate</span>," <span word="the">the</span> <span word="official">official</span> <span word="said">said</span>, <span word="adding">adding</span> <span word="that">that</span> <span word="the">the</span> <span word="team">team</span> <span word="successfully">successfully</span> <span word="collected">collected</span> <span word="methane">methane</span> <span word="gas">gas</span> <span word="extracted">extracted</span> <span word="from">from</span> <span word="the">the</span> <span word="half">half</span>-<span word="frozen">frozen</span> <span word="substance">substance</span>.</p><p><span word="Under">Under</span> <span word="the">the</span> <span word="government">government</span>-<span word="led">led</span> <span word="project">project</span>, <span word="the">the</span> <span word="consortium">consortium</span> <span word="is">is</span> <span word="to">to</span> <span word="separate">separate</span> <span word="methane">methane</span> -- <span word="the">the</span> <span word="primary">primary</span> <span word="component">component</span> <span word="of">of</span> <span word="natural">natural</span> <span word="gas">gas</span> -- <span word="from">from</span> <span word="the">the</span> <span word="solid">solid</span> <span word="clathrate">clathrate</span> <span word="compound">compound</span> <span word="under">under</span> <span word="the">the</span> <span word="seabed">seabed</span> <span word="using">using</span> <span word="the">the</span> <span word="high">high</span> <span word="pressures">pressures</span> <span word="available">available</span> <span word="at">at</span> <span word="depth">depth</span>, <span word="officials">officials</span> <span word="said">said</span>.</p>
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