The permissions mask allocates 8 bits each to the four possible types of key accessor: possessor, user, group, and other.

权限掩码给四个可能的密钥访问者类型各分配 8 位：所有者、用户、组和其他。

youdao

Zeng's group of three canvases demonstrates how any marking, any technique, any medium, must mask the image it reveals.

曾梵志把三张画布拼成一组，展示了任何印记、技法、中介是如何必须像面具那样把它们所创造的意象予以遮蔽。

youdao

After that, position the bridge behind the angel and the city like the image below. Group the two layers and create a mask to hide in the image edges.

之后，将大桥摆在天使和城市身后，如下图所示。将大桥和城市两层打组，并创建蒙版将图片的边缘隐去。

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But study author Kristine Funk, the Kaiser Permanente Center for Health Research says those averages mask significant differences within the group of website users.

VOA: standard.2010.07.30

"The town of Steubenville has been good at keeping this quiet and their star football team protected, " an Anonymous member wearing the group's trademark Guy Fawkes mask says in a video posted to the group's LocalLeaks website.

CNN: Defense battles social media blizzard in Ohio rape case

Numerous protesters - here and elsewhere - are choosing to identify themselves with the online protest group "Anonymous" by wearing the Guy Fawkes mask.

BBC: V is for what? The meaning of the mask

Fatah leader Mahmoud Abbas's decision to remove both his own mask and that of his organization should cause the Netanyahu government to reassess its current policies toward the group.

CENTERFORSECURITYPOLICY: Fatah's message