The dynamic compensating device can adjust its parameters by itself on the basis of the loading condition, and the best compensating effect is obtained all the time.

In order to further compensating the influence of the deflection moment formed by the load bias along the spool, a balance hole is proposed which has been shown with apparent compensating effect.

As Mr Micawber wisely pointed out, a small change in income can, in the absence of a compensating change in outlays, have a disastrous effect.