In a document copying machine, a device for adding to or masking details from an original so that these are incorporated into or deleted from the copies.
在资料复制机中，一种用于给原文件中增加或从原文件中屏蔽某些细节的设备，因而可以给复制件加进或删去一些细节。
Capable of masking or neutralizing odors.
可除臭的可以掩臭或中和臭气的
He put masking tape round the edges of the glass while he painted the window frame.
他给窗框上漆时，用遮蔽胶带把玻璃边缘贴住。
