fixed period

基本解释

The employer and the worker may conclude a labor contract with a fixed period upon consultation.
用人单位与劳动者协商一致，可以订立固定期限劳动合同。
This would typically be where we need the flow to wait for an asynchronous event to occur (which takes a fixed period of time).
这将通常是因为我们需要流等待异步事件发生（需要等待一段固定的时间）。
Firms are obliged to lay off (typically young) contract workers at the end of a fixed period, so they have little incentive to train tomorrow’s workforce.
在固定合约期结束时，公司被迫解雇（通常是年轻人）合同工，因此公司缺乏动机去培训这些明天的劳动主力。

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

It would give undocumented immigrants the chance to apply for legal working permits for a fixed period.
NPR: Bush Promotes Immigration Reform