This paper discussed the material of equipmen t which was used to prepare diethyl oxalate by co coupling - regeneration reactio n wi th the method of weight . the seven kinds of metal material , such as 306 , 314l , 316l , zr , ti ( 2 ) , ti ( 10 ) , 1cr18ni9ti and one kind nonmetal material ( pe ) have been hung in the liquid compound in the regeneration reactor for 1500hours . the experiment ind icative that the corrosion rate of the 306 is the biggest , in the after is 316l , t i ( 10 ) , 1cr18ni9ti , zincorium ( zr ) , ti ( 2 ) , that of pe is lest ; 1cr18ni9ti is the better material of equipment 山海经记载:夸父与日逐走,入日.渴,欲得饮,饮于河、渭;河、渭不足,北饮大泽.未至,道渴而死.弃其杖,化为邓林.夸父征服太阳的愿望虽然没能实现,但他宏大的志向,巨大的力量和气魄却为世代颂扬.今天,在泰山脚下,我们却看到了一幕现代版的夸父逐日,而这次, "夸父"追到了太阳.这个现代版的"夸父" ,就是泰安交通汽车制造有限公司
This paper discussed the material of equipmen t which was used to prepare diethyl oxalate by co coupling - regeneration reactio n wi th the method of weight . the seven kinds of metal material , such as 306 , 314l , 316l , zr , ti ( 2 ) , ti ( 10 ) , 1cr18ni9ti and one kind nonmetal material ( pe ) have been hung in the liquid compound in the regeneration reactor for 1500hours . the experiment ind icative that the corrosion rate of the 306 is the biggest , in the after is 316l , t i ( 10 ) , 1cr18ni9ti , zincorium ( zr ) , ti ( 2 ) , that of pe is lest ; 1cr18ni9ti is the better material of equipment 水泥混凝土路面作为主要的路面结构形式, 21世纪90年代以后,在公路建设中得到飞速发展.高速公路相继采用这种路面结构形式,从这些公路的使用情况来看,水泥混凝土路面的返修率较高,且返修时间较长,严重影响公路的使用,最严重的病害就是开裂破坏,如何防止水泥混凝土路面开裂是一项重要且紧迫的任务
In the aspect of detection and high precision estimation of seafloor backscattering , algorithms of fast convergence of energy center and correlation of eigen - replica were developed . also studded were processing methods of weighted mean time ( wmt ) and bearing direction indicator ( bdi ) based on fft beam forming as well as high precision detection and estimation of time of arrival ( toa ) and direction of arrival ( doa ) using split beams phase difference detection technique 围绕海底反向散射信号的高精度检测和估计技术,开发了快速能量中心收敛算法和特征模型相关算法,研究了基于fft波束形成的加权时间平均与方位指示处理方法,并讨论了利用分离波束相位差检测技术的海底反向散射信号到达时间( toa )和到达方向( doa )的高精度检测与估计方法。
The point interpolation method ( pim ) is a kind of new meshless method based on the theory of interpolation , its shape function is constructed by interpolation method . in this article , the thinking of point interpolation function is used in the method of weighted residuals ( wrm ) , so the pifwrm is presented , and the numerical examples show its validity 其次,由于点插值法是基于插值型形函数构造理论的一种无单元法,我们研究了这种构造函数方法的数学基础,并提出了点插值插值函数加权残值法,进行了算例验证。