推导了测角后交点位方差与观测值的显函数关系式。
An explicit functional relation of the point position variance of angular resection with observation value was derived.
给出了包含宏观政策变量的最优资本结构函数关系式；
The optimal capital structure function is alsogiven. which includes the variable of macroeconomic policy.
本文利用线性回归的方法给出沥青软化点与电阻率和温度的函数关系式。
Using linear regression method, the authors give a function of soft point of bitumen as temperature and resistance.
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