数字时代的战场无处不在
<p><span word="The">The</span> <span word="Northrop">Northrop</span> <span word="Grumman">Grumman</span> <span word="B">B</span>-2 <span word="Spirit">Spirit</span> <span word="is">is</span> <span word="a">a</span> <span word="terrifying">terrifying</span> <span word="piece">piece</span> <span word="of">of</span> <span word="military">military</span> <span word="kit">kit</span>. <span word="The">The</span> <span word="stealth">stealth</span> <span word="bomber">bomber</span> <span word="can">can</span> <span word="fly">fly</span> <span word="undetected">undetected</span> <span word="for">for</span> <span word="many">many</span> <span word="thousands">thousands</span> <span word="of">of</span> <span word="miles">miles</span> <span word="to">to</span> <span word="drop">drop</span> <span word="a">a</span> <span word="thermonuclear">thermonuclear</span> <span word="bomb">bomb</span> <span word="on">on</span> <span word="pretty">pretty</span> <span word="much">much</span> <span word="any">any</span> <span word="target">target</span> <span word="on">on</span> <span word="the">the</span> <span word="planet">planet</span>. <span word="According">According</span> <span word="to">to</span> <span word="one">one</span> <span word="government">government</span> <span word="estimate">estimate</span>, <span word="each">each</span> <span word="B">B</span>-2 <span word="in">in</span> <span word="operation">operation</span> <span word="on">on</span> <span word="average">average</span> <span word="has">has</span> <span word="cost">cost</span> <span word="the">the</span> <span word="US">US</span> <span word="Air">Air</span> <span word="Force">Force</span> $2.1<span word="bn">bn</span> <span word="to">to</span> <span word="develop">develop</span> <span word="and">and</span> <span word="deploy">deploy</span>.</p><p>诺思罗普格鲁曼公司(<span word="Northrop">Northrop</span> <span word="Grumman">Grumman</span>) <span word="B">B</span>-2“幽灵”是一种可怕的军事装备。这种隐形轰炸机能够在不被发现的情况下飞行数千英里，向地球上几乎任何一处目标投放一枚热核炸弹。根据某一项政府估算，每架服役的<span word="B">B</span>-2轰炸机的开发和部署花费了美国空军21亿美元。</p><p><span word="Clearly">Clearly</span>, <span word="very">very</span> <span word="few">few</span> <span word="countries">countries</span> <span word="have">have</span> <span word="the">the</span> <span word="money">money</span> <span word="or">or</span> <span word="the">the</span> <span word="technology">technology</span> <span word="to">to</span> <span word="invent">invent</span> <span word="such">such</span> <span word="weapons">weapons</span> <span word="systems">systems</span>. <span word="There">There</span> <span word="are">are</span> <span word="also">also</span> <span word="very">very</span> <span word="few">few</span> <span word="occasions">occasions</span> <span word="on">on</span> <span word="which">which</span> <span word="such">such</span> <span word="weapons">weapons</span> <span word="can">can</span> <span word="be">be</span> <span word="used">used</span> (<span word="God">God</span> <span word="willing">willing</span>). <span word="The">The</span> <span word="US">US</span> <span word="therefore">therefore</span> <span word="remains">remains</span> <span word="dominant">dominant</span> <span word="in">in</span> <span word="what">what</span> <span word="it">it</span> <span word="terms">terms</span> <span word="its">its</span> <span word="first">first</span> <span word="and">and</span> <span word="second">second</span> <span word="offset">offset</span> <span word="strategies">strategies</span>: <span word="clear">clear</span> <span word="supremacy">supremacy</span> <span word="in">in</span> <span word="nuclear">nuclear</span> <span word="weapons">weapons</span> <span word="and">and</span> <span word="precision">precision</span>-<span word="guided">guided</span> <span word="missiles">missiles</span>. <span word="But">But</span> <span word="although">although</span> <span word="such">such</span> <span word="technologies">technologies</span> <span word="remain">remain</span> <span word="necessary">necessary</span> <span word="to">to</span> <span word="offset">offset</span> <span word="the">the</span> <span word="challenges">challenges</span> <span word="of">of</span> <span word="rival">rival</span> <span word="powers">powers</span>, <span word="they">they</span> <span word="are">are</span> <span word="no">no</span> <span word="longer">longer</span> <span word="sufficient">sufficient</span> <span word="in">in</span> <span word="our">our</span> <span word="rapidly">rapidly</span> <span word="changing">changing</span> <span word="world">world</span>.</p><p>显然，没有几个国家拥有发明这种武器系统的财力或技术。能够用上这种武器的场合也很少（但愿如此）。因此，美国在其所谓的第一、二次抵消战略中仍然占主导地位：也就是核武器和精确制导武器上的绝对优势。但尽管这些技术对抵消竞争势力的挑战依然必不可少，但在我们这个瞬息万变的世界中，仅仅拥有这些技术已经不再足够。</p>
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