The average time fixation duration trends not obvious change over time, and not directly related to fatigue.

平均注视时间随时间变化趋势不明显，与疲劳无直接相关。

youdao

The dark current and the counting rate have down to the 1/10 of its original level; the efficiency has not obvious change and stays around 97% .

漏电流和计数率都降到了原来的1/10左右；效率随时间的增长没有多大变化，都能保证在97%左右。

youdao

Another change is extremely important but not obvious from Listing 1: Partitions are numbered starting from 1 in GRUB 2, whereas partition numbering begins with 0 in GRUB Legacy.

清单1中另一项变化相当重要但不明显：GRUB 2中分区数字从1开始，GRUB Legacy中从0开始。

youdao

The trade-offs involved in using abstracted data in relational databases versus non-abstracted data in non-relational databases, relying on pre-abstraction versus self-abstraction of high-volume data streams, and so on are not obvious, will change as technology involves, and will depend on the company and the problem.

FORBES: Three Ways To Make Big Data Make Money

While the change is not immediately obvious outside of Yoyogi Station, the first stop past Shinjuku, concrete evidence lies a few blocks away, at Yoyogi Village.

BBC: Seeing Tokyo along the Yamanote Line

Although rising ocean waters on average only a few centimeters during the past century may not be obvious, the effects of climate change are seen in other ways.

NPR: Pacific Island Cultures Brace for Climate Change