你不好奇吗?为什么日本上空有如此多的高压电线(多图)
<p><span word="TOKYO">TOKYO</span> —<span word="Something">Something</span> <span word="many">many</span> <span word="visitors">visitors</span> <span word="to">to</span> <span word="Japan">Japan</span> <span word="notice">notice</span> <span word="is">is</span> <span word="the">the</span> <span word="abundance">abundance</span> <span word="of">of</span> <span word="overhead">overhead</span> <span word="powerlines">powerlines</span>. <span word="Whether">Whether</span> <span word="youre">youre</span> <span word="in">in</span> <span word="the">the</span> <span word="suburbs">suburbs</span>, <span word="city">city</span> <span word="center">center</span>, <span word="or">or</span> <span word="even">even</span> <span word="rural">rural</span> <span word="communities">communities</span>,<span word="its">its</span> <span word="rare">rare</span> <span word="to">to</span> <span word="look">look</span> <span word="up">up</span> <span word="at">at</span> <span word="the">the</span> <span word="sky">sky</span> <span word="or">or</span> <span word="towards">towards</span> <span word="the">the</span> <span word="horizon">horizon</span> <span word="without">without</span> <span word="the">the</span> <span word="view">view</span> <span word="being">being</span> <span word="criss">criss</span> <span word="crossed">crossed</span> <span word="by">by</span> <span word="thick">thick</span>, <span word="black">black</span> <span word="cables">cables</span>.东京——来日本旅游的游客可能会注意到日本天空中有大量的高压电线。不管是在郊区，还是在市中心，甚至在农村地区，当你抬头看天空或者遥望远处时总会看到这些厚黑的电线。</p>在其他国家都把电线藏到地底的情况下，为什么日本的地表上面会有这么多的电网呢？简单的答案就是成本，但据说把电线绑在电线杆上还有其他的好处，而且日本还没达成共识到底那种方式更好。</p><p><span word="Starting">Starting</span> <span word="with">with</span> <span word="the">the</span> <span word="budgetary">budgetary</span> <span word="side">side</span> <span word="of">of</span> <span word="things">things</span>, <span word="subterranean">subterranean</span> <span word="systems">systems</span> <span word="are">are</span> <span word="a">a</span> <span word="lot">lot</span> <span word="more">more</span> <span word="expensive">expensive</span>. <span word="With">With</span> <span word="the">the</span> <span word="added">added</span> <span word="expenses">expenses</span> <span word="of">of</span> <span word="digging">digging</span> <span word="the">the</span> <span word="ditches">ditches</span> <span word="and">and</span> <span word="properly">properly</span> <span word="installing">installing</span> <span word="thelines">thelines</span> <span word="and">and</span> <span word="conduits">conduits</span>, <span word="the">the</span> <span word="cost">cost</span> <span word="can">can</span> <span word="balloon">balloon</span> <span word="to">to</span> <span word="ten">ten</span> <span word="times">times</span> <span word="that">that</span> <span word="of">of</span> <span word="a">a</span> <span word="comparablysized">comparablysized</span> <span word="network">network</span> <span word="of">of</span> <span word="above">above</span>-<span word="ground">ground</span> <span word="poles">poles</span>.先从预算角度来说，将电网埋藏在地下成本更高。首先要挖沟，然后将电线和导线埋在里面，所以其成本甚至可以是地表电网成本的十倍。</p>
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