Interest expenses from the assets retirement obligations for each period are recognised with the effective interest method during the useful lives of the related oil and gas properties.
在油气资产的使用寿命内，油气资产弃置义务采用实际利率法确定各期间应承担的利息费用。
2
In this paper, the authors use the mathematics method to calculate the actual influence on the female pension when their retirement ages are delayed.
文章用数学方法测算出提高女性退休年龄后，对女性退休后的养老金产生的实际影响。
3
The change involves pension and post-retirement plans, and a switch to a "mark-to-market" method to recognize actuarial gains and losses in the period when they were incurred.