The money has been invested for a fixed period.

这笔款项已作定期投资。

《牛津词典》

A quota is an upper limit which is set on imports of a commodity for a fixed period of time.

配额制度是在固定一段时间内对进出口商品所设置的上限。

youdao

As with an apartment rental contract, car leasing will have a fixed period — typically two or three years.

租车合同和租房一样：需要一个固定期限- - -典型的是两到三年。

youdao

A perpetuity is an asset or a contract that pays a fixed amount of money each time period, forever.

永续年金是一种财产或者合同,规定在每一时间段内,支付一定数量的货币,直至永远

耶鲁公开课 - 金融市场课程节选

This is a formula that applies to-- what if an asset pays a fixed amount every period and then stops?

这个公式应用于...,如果一份资产在每段时期都给与支付,然后突然停止了怎么办

耶鲁公开课 - 金融市场课程节选

Just as I foreshadowed, if you look at the difference between the first and third quartile in the bond market -these are active returns over a ten-year period again ending June 30,2005 -and the fixed income market, the difference between first and third quartile is a half a percent per annum.

如我之前所示,如果观察,债券市场中的第一和第三个四分位数,四分位数即统计学中,把所有数值由小到大排列并分成四等份三个分割点位置分别就是三个四分位数 考虑十年期的主动型的收益,截止于2005年6月30日,在债券这个固定收益市场,第一和第三个四分位数,每年只差0.5%

耶鲁公开课 - 金融市场课程节选

Russian engineers will certify, or "guarantee", the performance of the return capsules for a fixed period.

BBC: November deadline for ISS crews

From April all new tenancies will be issued for a fixed period of two years.

BBC: Isle of Man council houses 'not for life' warning

It would give undocumented immigrants the chance to apply for legal working permits for a fixed period.

NPR: Bush Promotes Immigration Reform