本文探索了用经验方法推求水文参数的问题。
It has been studied that the hydrologic parameters can be determined by using empirical method.
用实验方法确定经验公式时，回归方程中用最小二乘方法求得的待估参数的估计值往往是一个很长的数。
When determining empirical formula with test method, estimation value of estimated parameter in regression equation which is obtained with least square method always is a long number.
用AM 1半经验方法，优化了吲哚和苯酚中性分子、正离子自由基和负离子自由基的几何构型。
The geometries of neutral indole and phenol, as well as their cation radicals and anion radicals, have been optimized by using AM1 method.
计算中，用半经验方法确定了分子轨道系数。
The molecular orbital coefficients are determined by means of a semiempirical method in the calculation.
计算中，用半经验方法确定了分子轨道系数。
The molecular orbital coefficients are determined by means of a semiempirical method in the calculation.
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