The stools were made as a project whose goal was to explore the usability of various waste products.

这些艺术品凳子是一个探索各种废物再利用项目。

They just cared about the cost. They didn't care about usability.

只关心成。不关心用性。

It's reaching the end of its lifetime — and there have been extensive studies to extend the usability of the Thames barrier.

它使用寿命即将结束——人对泰晤士河护栏用性进行了广泛研究。

Let's think about functionality, usability, and innovation.

让我考虑一下功能、用性和创新。

New technology has been developed to monitor brain blood flow with improved sensitivity and usability.

4.开发了新术来监测脑血流，提高了灵敏度和用性。

Usability is the degree to which a human-made artifact – like software – can be used to achieve an objective effectively and efficiently.

用性是指人造制品（如软件）用于有效且高效地实现目标程度。

And the app that I have found to be the absolute best combination of features and usability, personally at least, this is my opinion, is called Noteshelf 2.

而我认为是功能和用性完美结合应用程序，至少就我个人而言，这是我观点，叫做Noteshelf 2。

Beyond the scientific parts, there are a lot of usability issues to be taken into consideration: for instance, the algorithm should notify the user when a given guide is not to be used anymore and can be safely erased.

除了术理论上问题，还有些实际使用上问题需要考虑：例如，算法应该能够告知用户某条辅助线已经不再使用、以擦掉了。