well-formed formulas

The formulas can be used in calculating hydraulic parameters in directional well drilling engineering.

为定向井、水平井钻井水力参效设计和计算提供了新的理论基础。

We need clear formulas as well for development and climate financing.

对于发展和气候资助,我们也需要明确的摊派方案.

Aimed at four kinds of practical cases in the field hydraulic tests, their respective formulas have been deduced based on unsteady well flow theory and the principle of superposition of potential functions.

针对野外水力试验常遇到的四种实际情况，根据非稳定井流理论和势函数叠加原理导出了它们各自的求参公式。

It supplies the account formulas and partial circuits parameters of the threshold value for adjusting and setting-up logic level. It makes logical level boundary clear and well-judged.

给出了调节设定逻辑电平阈值的计算公式和部分电路参数，使逻辑电平界限清楚，判断确切。

The formulas of calculating the tidal coefficient and lag time are developed, and the corrected formulas of lag influence of tide in the well level are given.

导出了计算固体潮系数和滞后时间的公式，给出了考虑滞后影响的井水位固体潮校正公式。