expected life

基本解释

For the validity period, make sure to use a period that exceeds the expected life of the application and related applications.
对于有效期，请确保使用超出应用程序本身和相关应用程序预期生命期的时期。
As the stress level is gradually reduced, there comes a point where a structure can survive enough stress reversals to exceed the component’s expected life.
当压力水平逐渐减小，有一点就是结构能够经历足够应力反向之后继续存在来超越组件的预期寿命。
While the expected life-span for a mouse is about 25 months, one of the IRS-1deficient mice in this research lived for 38 months 66 per cent longer than a normal mouse.
老鼠预期寿命一般为25月左右，而其中一个缺少IRS-1的老鼠寿命达到了38月-比同类长66％。
scifans.com

"It is unfair because he has done nothing wrong." The five men face life in prison and are expected to be sentenced in December.
The expected life spans increased dramatically in the last couple of hundred years until now, for people that were born when you were born you can expect to live to be 80 years old, a doubling in life span, fairly dramatic.
从几百年前到现在,预期寿命显著增长了,你们同期出生的那批人,能够活到八十岁,预期寿命增长了一倍,令人印象深刻
耶鲁公开课 - 生物医学工程探索课程节选

The LED itself has an expected life of about 50, 000 hours (six years) of continuous use.
FORBES: LED Light Bulbs Mature At Last
Also, all the keys will in fact be OLED with an expected life span of only 5 years, depending upon use of course.
ENGADGET: Optimus Maximus: the god of keyboards unveiled