1·The approximative linearization to factors, simplifying analysis process indeed, lead to the result that would possibly differ from the real fact.
这些因素的近似线性化虽然简化了分析过程，但所得结果可能与工程实际偏离较大。
2·By use of the common formula for solving the time variations of the crustal density, the approximative plane formula is derived and its numerical calculation method is given.
采用求解地壳单层密度变化的一般公式，导出其平面近似公式并给出了相应的数值计算方法。
3·This, paper gives some approximative solving methods of radiative transfer equation in astrophysics. It is found that mathematical approximations of ten are complete and accurate in physics.
本文给出了天体物理学中辐射转移方程的几种近似解法，讨论了数学近似和物理条件如何吻合，发现：数学上的近似常常不影响物理上完整和自洽。
4·Methods In this paper, the authors provided the asymptotic distribution about the statistic in the formulas by using the theories of distribution and the methods of approximative calculation.
方法 运用统计量的分布理论和近似计算方法 ，求出公式中所涉及统计量的渐近分布。
5·Formula for approximative stress calculation of expansion loop is described with a design case cited.
介绍了膨胀环应力近似计算公式及设计实例。