A new approximate model or the earths gravity field is presented in this paper. We call it a mascon model.
本文给出了一个新的重力场近似模型，称之为质聚模型。
The model downloaded to a smart phone finds an approximate solution for a new set of parameters by reference to the precomputed solutions.
这个模型会被下载到智能手机上，通过引用预先计算好的结果来找到一个对应新的参数组的近似结果。
A new approximate iterative approach, QDA method, for the steady solution of flexible mechanism is put forward, based on the finite element analysis on the distributed parameter model.
在以分布质量为模型的仃限元分析基础，上提出了一种用以求解弹性机构稳态解的新的迭代近似方法（QDA方法）。
A new mathematical model for the non-Hertz contact problems is proposed based on the mixed variational principle. From this model, the finite element approximate formulae are derived.
本文从混合变分法原理着手，对弹性接触问题提出一种新的数学模式，并从中导出有限元的近似公式。
Since the homogeneous model can approximate the objective function better than the quadratic model, the new algorithm is superior to the classical trust region algorithm.
由于该模型比二次模型更近似目标函数，故新算法优于传统的信赖域算法。
Performances of approaching and approximate error were given for the new smooth function, as well as the study of convergence and the approximation limit of optimum for the new model.
还给出了新光滑函数的逼近性能和精度分析以及新模型的收敛性证明和最优解的逼近上限。
Performances of approaching and approximate error were given for the new smooth function, as well as the study of convergence and the approximation limit of optimum for the new model.
还给出了新光滑函数的逼近性能和精度分析以及新模型的收敛性证明和最优解的逼近上限。
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