他们采用这种格式，平均减少了20%的存储需求，同时可以达到更好的性能(按需延迟对列数据的解压)。

They have adopted this format and are seeing reduced storage requirements of about 20% on average and they can achieve improved performance by using it (by lazily decompressing columns as needed).

youdao

据《法国安地列斯报》报道，当地货物，比如酸奶或新鲜牛肉的价格平均要比本土贵34%。

Prices of goods such as yogurt or fresh beef are on average 34% higher, according to France-Antilles, a newspaper.

youdao

在不这样设置的情况下，获取每行包含三个 VARCHAR 列的 10,000 个行所需的平均时间为 22 秒。

Without this setting, the time required to fetch 10,000 rows of three VARCHAR columns took an average of 22 seconds.

youdao

But they're accountable and we can list all possible values when they're discrete and form a probability weighted average of the outcomes.

但随机变量是离散的话,我们可以把所有的可能值列出来,然后算出加权平均值

耶鲁公开课 - 金融市场课程节选