Result shows : the vibration of vehicle is mainly relevant to velocity and uneven path . the higher the velocity is , the more uneven the path is , the more violent the vibration of vehicle is ; comparing dynamical response of middle bridge stride on vehicle passing bridge and on equivalent moving loads , the displacement is same but the velocity and the acceleration are different ; the result of velocity and acceleration of vehicle is big over the ground path than over the same path of bridge 结果表明：车辆的振动主要和车速及轨道不平顺有关，车速越高，轨道越不平顺，车辆振动的就越剧烈；车过桥时桥梁跨中动力响应与等效移动荷载作用下桥梁跨中动力响应比较，桥梁跨中的位移基本相近，速度和加速度则不同，等效移动荷载作用情况下的数值比较大；车辆过地面轨道不平顺时的速度、加速度比车辆过桥上同样轨道不平顺时的数值大。
The protagonist is the hero responsible for the safety of the passengers , however , the essence of the story and the spirit of the character are very different . certainly , in terms of the production level , this film possesses a strong " hollywood " look . no matter the narrative structure , the use of camera angles , or even the employment of computer special effects , everything comes close to hollywood standard 金胜友于是以死缠烂打的方式追赶cha seung - won ，一直追到一班列车之上，怎知原来cha正密谋胁持该列车论剧情大纲和故事发展模式，此片和西片如executive decision或生死时速有相似的地方，但细节则不同。
As a liberal arts university , lingnan university " lingnan " or " the university " is fully committed to quality teaching as well as excellence in research . where some liberal arts colleges in the us focus only on teaching , we pride ourselves as a " liberal arts - plus " university which also excels in research 美国的博雅学院一般只注重教学，岭南大学下称岭大则不同，除了重视教学质素外，教员亦须致力于研究工作，力求教学与研究二者同步并进，达致卓越，希冀成为一所超级博雅大学“ liberal arts - plus university ” 。
Humic acid usually formed from phytoplanktons , zooplanktons , and epicontinental vascular plants through biodegraded and condensated reaction . krogen derived either from humic acid or from the reworking materials . differing from humic acid and kerogen , bc was produced from the incomplete combustion of fossil fuels and biomass 并且不同的有机质有不同的来源，腐殖酸通常是浮游生物和陆生的高等植物经过生物降解、聚合等过程形成的；干酪根是腐殖酸进一步演化而成，既有原生的也有异地迁移而来的；碳黑则不同于腐殖酸和干酪根，它是生物质和煤、油等化石燃料经过燃烧产生的。
