Scientists finalize test platform for ultra-speed maglev train
<p><span word="Download">Download</span></p><p><span word="Chinese">Chinese</span> <span word="scientists">scientists</span> <span word="have">have</span> <span word="built">built</span> <span word="the">the</span> <span word="world">world</span>'<span word="s">s</span> <span word="first">first</span> <span word="prototype">prototype</span> <span word="testing">testing</span> <span word="platform">platform</span> <span word="for">for</span> <span word="an">an</span> <span word="ultra">ultra</span>-<span word="high">high</span>-<span word="speed">speed</span> <span word="vacuum">vacuum</span> <span word="maglev">maglev</span> <span word="train">train</span>, <span word="which">which</span> <span word="theoretically">theoretically</span> <span word="could">could</span> <span word="hit">hit</span> <span word="speeds">speeds</span> <span word="up">up</span> <span word="to">to</span> 2,900 <span word="km">km</span> <span word="per">per</span> <span word="hour">hour</span>, <span word="or">or</span> <span word="almost">almost</span> <span word="three">three</span> <span word="times">times</span> <span word="the">the</span> <span word="speed">speed</span> <span word="of">of</span> <span word="a">a</span> <span word="passenger">passenger</span> <span word="jet">jet</span>, <span word="researchers">researchers</span> <span word="confirmed">confirmed</span> <span word="on">on</span> <span word="Wednesday">Wednesday</span>.</p><p><span word="Running">Running</span> <span word="the">the</span> <span word="maglev">maglev</span> <span word="train">train</span> <span word="in">in</span> <span word="a">a</span> <span word="near">near</span>-<span word="vacuum">vacuum</span> <span word="environment">environment</span> <span word="is">is</span> <span word="the">the</span> <span word="best">best</span> <span word="way">way</span> <span word="to">to</span> <span word="ensure">ensure</span> <span word="the">the</span> <span word="comfort">comfort</span> <span word="and">and</span> <span word="energy">energy</span> <span word="economy">economy</span> <span word="of">of</span> <span word="an">an</span> <span word="ultra">ultra</span>-<span word="high">high</span> <span word="speed">speed</span> <span word="train">train</span>, <span word="said">said</span> <span word="Deng">Deng</span> <span word="Zigang">Zigang</span>, <span word="head">head</span> <span word="of">of</span> <span word="the">the</span> <span word="project">project</span> <span word="team">team</span> <span word="based">based</span> <span word="in">in</span> <span word="Southwest">Southwest</span> <span word="Jiaotong">Jiaotong</span> <span word="University">University</span> <span word="in">in</span> <span word="Sichuan">Sichuan</span>'<span word="s">s</span> <span word="capital">capital</span> <span word="Chengdu">Chengdu</span>.</p><p><span word="When">When</span> <span word="a">a</span> <span word="train">train</span>'<span word="s">s</span> <span word="speed">speed</span> <span word="reaches">reaches</span> 400 <span word="km">km</span> <span word="per">per</span> <span word="hour">hour</span> <span word="or">or</span> <span word="above">above</span>, <span word="Deng">Deng</span> <span word="said">said</span>, <span word="more">more</span> <span word="than">than</span> 83 <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="traction">traction</span> <span word="is">is</span> <span word="wasted">wasted</span> <span word="to">to</span> <span word="offset">offset</span> <span word="air">air</span> <span word="resistance">resistance</span> <span word="and">and</span> <span word="the">the</span> <span word="aerodynamic">aerodynamic</span> <span word="noise">noise</span> <span word="is">is</span> <span word="over">over</span> 90 <span word="db">db</span>, <span word="higher">higher</span> <span word="than">than</span> <span word="the">the</span> 75 <span word="db">db</span> <span word="set">set</span> <span word="by">by</span> <span word="design">design</span> <span word="standards">standards</span>.</p><p><span word="Southwest">Southwest</span> <span word="Jiaotong">Jiaotong</span> <span word="University">University</span> <span word="developed">developed</span> <span word="the">the</span> <span word="initial">initial</span> <span word="high">high</span> <span word="temperature">temperature</span> <span word="superconducting">superconducting</span> <span word="magnetic">magnetic</span> <span word="levitation">levitation</span> <span word="test">test</span> <span word="loop">loop</span> <span word="in">in</span> <span word="March">March</span> 2013, <span word="and">and</span> <span word="the">the</span> <span word="latest">latest</span> <span word="model">model</span> <span word="had">had</span> <span word="the">the</span> <span word="vacuum">vacuum</span> <span word="pipe">pipe</span> <span word="that">that</span> <span word="became">became</span> <span word="the">the</span> <span word="world">world</span>'<span word="s">s</span> <span word="first">first</span> <span word="evacuated">evacuated</span> <span word="tube">tube</span> <span word="transport">transport</span> <span word="system">system</span>.</p><p><span word="When">When</span> <span word="the">the</span> <span word="train">train</span> <span word="runs">runs</span> <span word="in">in</span> <span word="the">the</span> <span word="tube">tube</span>, <span word="the">the</span> <span word="pressure">pressure</span> <span word="inside">inside</span> <span word="is">is</span> 10 <span word="times">times</span> <span word="lower">lower</span> <span word="than">than</span> <span word="outside">outside</span> <span word="and">and</span> <span word="the">the</span> <span word="train">train</span> <span word="can">can</span> <span word="use">use</span> <span word="more">more</span> <span word="power">power</span> <span word="for">for</span> <span word="driving">driving</span> <span word="at">at</span> <span word="high">high</span> <span word="speed">speed</span>, <span word="Deng">Deng</span> <span word="said">said</span>.</p><p><span word="From">From</span> <span word="the">the</span> <span word="point">point</span> <span word="of">of</span> <span word="design">design</span>, <span word="the">the</span> <span word="vacuum">vacuum</span> <span word="ultra">ultra</span>-<span word="high">high</span>-<span word="speed">speed</span> <span word="maglev">maglev</span> <span word="train">train</span> <span word="uses">uses</span> <span word="two">two</span> <span word="different">different</span> <span word="technologies">technologies</span> <span word="to">to</span> <span word="increase">increase</span> <span word="the">the</span> <span word="speed">speed</span> <span word="of">of</span> <span word="the">the</span> <span word="train">train</span>, <span word="said">said</span> <span word="Zhao">Zhao</span> <span word="Lin">Lin</span>, <span word="an">an</span> <span word="associate">associate</span> <span word="research">research</span> <span word="fellow">fellow</span> <span word="of">of</span> <span word="the">the</span> <span word="National">National</span> <span word="Lab">Lab</span> <span word="for">for</span> <span word="Superconductivity">Superconductivity</span>, <span word="Institute">Institute</span> <span word="of">of</span> <span word="Physics">Physics</span> <span word="at">at</span> <span word="the">the</span> <span word="Chinese">Chinese</span> <span word="Academy">Academy</span> <span word="of">of</span> <span word="Sciences">Sciences</span>.</p>
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