This thesis makes some research work on this field , and it is hoped to offer some references to the corporation 作为一家即将进入此行业的新企业? ?某血液制品公司(以下简称为df公司) 。
So , study on generation of df and how to abate it is significant to the reducing of traffic accidents 因此,研究驾驶疲劳的形成及减缓驾驶疲劳的方法,对于减少交通事故发生具有重要意义。
Using df ( describing function ) in determining the limit cycle number of differential equation is a significant analysis try 摘要将描述函数法用于确定微分方程极限环个数的问题是一个有意义的理论探索。
3 . the calculated df values of all types are less than 2 , indicating a low degree of perimeter complexity as a whole 各种绿地类型的分维数均小于2 ，说明整体上这些景观组分斑块边界的褶皱程度都较低。
In order to compute a nneaningful ratio in the analysis df ratios , there must be a significant relationship between the two figures 为了在比率分析时算出有意义的比例，要求两个数之间必须有明显的关系。
In this paper , combining pleisiochronous with hilbert df , the pleisiochronous hilbert df arithmetic is used to measure reactive power 在多功能电能表中无功功率这个参数对于电压及电网都有非常重要的意义。
The guardrail common sensor ( grcs ) is a corps - level airborne signal intercept , processing , direction - finding ( df ) , and targeting system 栅栏通用传感器是一个军团级空运信号拦截器，处理，直接搜寻，追踪系统。
This paper introduces df highway bridge erector , the third generation equipment for the erecting of prefabricated concrete bridge 摘要用于混凝土预制桥梁安装架设的df型架桥机是我国开发研制的第3代架桥机。
Df results on a lot of factors , an experiment table for simulated driving is built to explore the factor ’ s effect on df 驾驶疲劳是各种因素综合作用的结果,为了研究各种因素对疲劳的影响,建立了汽车驾驶虚拟实验台。
1998 , 27 : 16 - 21 . 7 frentzos e , gratsias k , pelekis n , theodoridis y . nearest neighbor search on moving object trajectories . in proc 他们在由tb树索引的数据集上利用一个深度优先df搜索范例来处理移动对象轨迹的knn查找。
