英语翻译下面的几句话我翻译不出来,:)1.basic bond maths analysis is presented

英语翻译
下面的几句话我翻译不出来,:)
1.basic bond maths analysis is presented in slightly different terms
2.it is also referred to as a due-bill or a letter repo
3.the counterparty desires this economic exposure,but the TR swap enables it to achieve this without taking on the associated financing cost
4.it has also contributed to the increase in competition and the reduction in margins and bid-offer spreads.

1.基础的债券数学分析被用略微不同的术语表示.
2.它也被叫做借据或回购协议.
3.对方渴望这种经济披露,但是总收益互换使它能够获得这种经济披露在不承担有关的金融成本的情况下.
4.它已经有助于增加竞争行为,减少盈余和买卖价的差额.