In view of special properties of the hot metal, it is most reasonable and suitable to use jet desulfurization technology with magnesium pellet agent, on accou…
鉴于钒钛铁水的特点，采用镁粒喷吹脱硫工艺，其基建投资少，脱硫工序费用低，因而最为适宜合理。
NewYork, Los Angeles and Chicago , this three cities have adapted a way , call as mapping crime. The Police Department deploys policeman on fixed region and holds local commaders accou …
纽约，洛杉矶，芝加哥三大城市采取了定位犯罪的方法。他们把警员分布到定点地区，每个地区都有警员负责。这样就有效的控制了该地区的犯罪。
NewYork, Los Angeles and Chicago , this three cities have adapted a way , call as mapping crime. The Police Department deploys policeman on fixed region and holds local commaders accou …
纽约，洛杉矶，芝加哥三大城市采取了定位犯罪的方法。他们把警员分布到定点地区，每个地区都有警员负责。这样就有效的控制了该地区的犯罪。
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