useful-life

基本解释

I hear this not so much as advice as useful, potentially life-saving information, which I didn't know before.
我聽到類似的於生命有益的且在此之前我竝不知道的的信息，我會感激不盡，不會有任何的反感。
In Jiyang depression, the locations of exploration well given by3D seismic allow useful-life possible about 5years.
在濟陽坳陷中，三維地震提供探井井位的有傚年限大致在5年左右。
The proliferation of scholarly sources in the mass communication field adds to the information explosion that routinely abbreviates the useful half-life of knowledge throughout the discipline.
大衆傳播領域學術來源的擴散導致了信息爆炸，而信息爆炸簡化了整個學科有用的半衰期知識。

Even small changes in what we eat and how we prepare our food can be very useful, says physician David Servan-Schreiber, author of "Anti-Cancer, A New Way of Life".
- And it's worth--; it's sort of a useful test for asking yourself -- what are the things you must value in life-- to ask, what would you choose to do if you knew you had five years, ten years, ? what have you?
而這值得;,這算是一種很有用的測試,用來問自己什麽是你在生命中必須珍惜的事-,問你會怎麽選擇,如果你知道自己還有5年，10年，之類的時間？
耶魯公開課 - 死亡課程節選

The analogy is useful because real-life recessive genes, such as those for eye color, hair color and other traits, follow this same set of rules.
FORBES: Harry Potter, Science Teacher
What Google gets from Buzz is a new means of organization, one that should make Google an even more useful part of life--with the not-incidental effect of improving its ability to sell advertising on its search results and mail.
FORBES: Magazine Article

使用壽命
In recent years, laser surface modification of dies of ductile iron has been an important method to improve its wear resistance and useful life.
對球墨鑄鉄沖壓模具的激光表麪処理已成爲改善其耐磨性、提高使用壽命的重要方法。
有傚壽命