In order to filter out all Product types that start with the letter c, the Report Author creates a filter on the entire Products hierarchy (all levels) with the following expression.

要过滤掉所有以字母c开头的Product types，报告作者在整个Products层次结构(所有级别)上创建了一个过滤器，表达式如下。

youdao

Light filter: Provides basic filtering by adjusting colour levels of each pixels.

Light Filter：通过调整每个像素的色彩层次提供标准滤光片功能。

youdao

Shellfish also contain high levels of toxins because of their filter-feeding habits.

贝类因有滤食习惯，也含有高水平的毒素，。

youdao

Another tool, called Radial Filter, adjusts levels for a highlighted area while adding a gradual, natural-looking shift.

ENGADGET

"Some of the filter results show levels slightly higher than those found by EPA monitors last week and a Department of Energy monitor the week before, " the agency said.

CNN: Japan's nuclear contamination spreads to more U.S. states

Speaking as a youth sports parent, I hope that Aspen opens up a national conversation that does, eventually, filter to the local league and parent levels.

FORBES: The Big Thinkers of the Aspen Institute Are Thinking About Youth Sports