railroad train

• Because of the original design standard was low, the horizontal angur rigidity is serious lack, when the high speed train passes, the exceed limit of the horizontal swing had affected the lifting of the main trunk line, these diseases had been existed earlier but had not been gotten to resolve radical, and along with the increasing in speed of railroad train, these diseases performance will be more seriously, it's time for resolve
  同时提速列车对桥梁结构的动力作用增大，特别是对上承式钢板梁。由于原设计标准低，横向刚度严重不足，高速列车通过时横向摆动严重超限等已严重影响了主要干线的提速，这些病害很早就存在但没有得到根治，随着列车提速，这些病害表现越来越严重，已到了必须整治的时候了。
• As the principal materials which are used as the high magnetic of hdd of computer mri and ct magnetic field hang float the railroad train motor of sound circle astro-airshop sound circle and engine etc . and the resposition hydrogen of the metal alloy manufacturing motive battery, these products are regarded as the new material industrial products in high scientific and technological circles
  等多种稀土金属及合金产品，纯度范围99-99.9%。它们是当今世界认定的高科技领域新材料工业产品，是计算机磁盘驱动器的音圈电机vcm核磁共振成像仪mri磁悬浮列车航天飞船音圈马达电机等所用高能磁体以及制造动力电池所用储氢合金的主要材料。
• 1 . after a series of comprehensive testing and structure analysis to various bridges on the guangshe, huning, jinqin, shenshan, jingguang . ln our opinion, the key problems of the railroad bridge are as follows : ( 1 ) bridge construction is not well at the request of the railroad train speed-lift, primarily because of low dynamic property of the horizontal frame; ( 2 ) the bad liability of the bridges structure, concrete beam's horizontal plank coupling form; the low capacity of some of the bridges
  在对广深、沪宁、京秦、沈山、京广干线上不同桥梁结构进行的一系列综合试验的结果分析后认为，我国铁路桥梁目前存在的主要问题为：桥梁结构不适应列车提速的要求，主要反映为结构横向的动力性能较差；桥梁结构的耐久性问题；混凝土梁的横隔板联结方式；部分桥梁承载能力不足。