The finite element analysis results are approximative with relative testing results 有限元分析结果和试验结果进行了比较，二者基本吻合。
2.
The approximative solution of differential kinematics equation containing a cubic veloccity nonlinear term for a projectile in the northern hemisphere 含速度三次方非线性阻力项的北半球发射体运动微分方程的逼近解
3.
With the solutions of characteristic equations , we advanced an approximative algorithm for solving precise characteristic equations 进一步运用? 1时的特征方程的解，提出了一种求解严格特征方程之特征值的近似方法。
4.
As shown in the example , the analysis results of the early testing method and convent ional method are extremely approximative 实例分析表明，该方法在缩短关井时间的同时，分析结果更接近于常规分析和图版拟合的结果，能够相对精确地获得各层的地层参数。
5.
While using support vector regression to do function approximation , we can control the number of support vectors and the approximative performance all by two parameters 在用支持向量回归进行函数逼近时，我们完全可以用两个参数来控制支持向量的个数和逼近的效果。
6.
The second one is to search approximative character points on fixed rigid body within design space , whose mathematic model is nonlinear and non - differential problem with multiple constraints 初始值问题是长期困扰机构优化综合的一个难题，初始值的好坏决定着优化过程的计算速度最优值的好坏。
7.
This flexion of graph can be defined as criterion of coal ignition character under excessive oxygen supply . based on viewpoints of coal ignition , we put forward assumption aiming at ignition character of coal with excessive oxygen . in this thesis , with comparison of average temperature increase among eleven kinds of coal , the following are obtained : homogeneous ignition happens when coal has higher volatile matter and there is a approximative direct - ratio relationship between temperature hoist before flexion and content of volatile matter ; on the other side , heterogeneous ignition occurs for the coal with lower volatile matter content because of collective influence of volatile matter and fixed carbon combustion , and one - to - one relationship between temperature increase before flexion and content of volatile matter does not exit 以煤着火性质研究的观点为基础，对煤在过氧条件下的着火性质提出假设，通过11种标准煤样在过氧条件下燃烧实验，对比了拐点前后平均温升与煤样成分的关系，证实了挥发分含量较高的煤在过氧条件下发生均相着火燃烧，拐点前后量热系统的温升分别与挥发分和固定炭的含量成近似正比的关系；而挥发分含量较低的煤在过氧条件下发生非均相着火燃烧，拐点之前量热系统的温升由于受到挥发分和固定炭同时燃烧的影响，因而不存在温升与挥发分含量之间单一的对应关系。
