Results:BZA correlative equation was obtained and the predictive ability of the resulting equation had been successfully tested by 5 comptothecin analogues.

By means of a three vector equation system, the correlative equations of the undetermined parameters are thus deduced when the small disturbance theory is applied to multiple blade rows.

The equation is different from other conclusions inferring and quoting curved beam differential physical equation(with same fundamental assumptions) in the correlative literatures.