So their values are incomparable since their collection time is different.

因为它们的收集时间不同，所以它们的值没有可比性。

youdao

A rooftop rainwater harvesting project in Rajasthan, India, has cut water collection time and ensured household water availability in a region plagued by drought.

印度拉贾斯坦邦屋顶雨水收集项目节省了取水时间，确保了本受旱灾困扰地区的居民用水。

youdao

There are several costs to card marking - additional space for the card map, additional work to be done on each pointer store, and additional work to be done at garbage collection time.

卡片标记有几项开销——卡片映射所需的额外空间、对每一个指针存储所做的额外工作，以及在垃圾收集时做的额外工作。

youdao

About fifty works are shown at any one time in its permanent collection.

VOA: special.2010.04.14

That is basically saying, given some collection of data, I want to have again a looping mechanism, where now my process is, walk through this, the collection one element at a time. And for that, we have a particular construct, called a FOR loop.

现在我的过程就是,通过一个个访问这个集合中,的元素的方式，来遍历这个集合,为了达到这个目的，我们有一个特定的结构，成为FOR循环。

麻省理工公开课 - 计算机科学及编程导论课程节选

The Met's Egyptian art collection takes us even further back in time.

VOA: special.2010.08.04

The end-to-end ocean data solution provided by Liquid Robotics' new integrated platform provides ocean data collection and processing at the point of collection with real time delivery of critical information to shore.

ENGADGET: Wave Glider sea robot gets a new version, replete with more power and gear

Set yourself a goal of not only reading about productivity, but developing a collection of 10 time management techniques that you use every day- a quiver of productivity weapons that become central to your working life.

FORBES: 3 Reasons People Don't Succeed in Business.

The insight behind these charts is that the value of an individual piece of data goes down with time and the value of a collection of data goes up with time.

FORBES: The Big Data Landscape Revisited