conventional formula meaning in English

实验式
习用式

Usually , authority card presses established price to carry out , but authority card publisher is met normally extraordinary agreement , eliminate advantageous position when the asset of occurrence mark , when removing the condition such as breath , authority card carries out the price , executive scale to want to undertake be adjustmented accordingly by conventional formula
一般情况下，权证按既定价格执行，但权证发行人通常会非凡约定，当出现标的资产除权、除息等情况时，权证执行价格、执行比例要按约定公式进行相应调整。