常見例句雙語例句This class lets you define a mask for a text field.利用這個類可以為文本域定義一個掩碼。The table map is used to define how you will mask the columns.表映射用于定義您將如何屏蔽列。The purpose of the mask is to define a rectangular region that gets excluded from detection processing.的目的,面具是界定一矩形區(qū)域得到排除檢測處理。 返回 define mask