摘要: Artifact An unwanted graphic ,usually small ,that ,每个站点都有一个唯一的名称,佛罗里达州的一位女士或北京的一位先生可各自从该数据库中检索他们所需要的...

Artifact
An unwanted graphic ,usually small ,that remains on a screen after an image is distorted by a mistake ,omission ,or limitation in graphics software or hardware .Artifacts may cause pixels to be dropped or to clump together .Other types of artifacts occur when the quality of a videotape is poor (if metal particles flake off the tape ,for example )or when decompression is faulty.

假象
由于错误、删除或图形软硬件中的局限性,而使图像失真以后留存在屏幕上的一种不想要的图形,通常很小。假象可能会造成像素丢失或组合到一起。当录像带质量低劣(例如,如果金属粒子从磁带上脱落)或当解压缩出现故障时,就会出现其他类型的假象。

Access Site
Location on a network where users can find data or programs .Each site has a unique name .For example ,at Washington University State Library ,there is an archive database stored on a particular computer .It can be accessed by someone who has logged onto the Internet and entered the name "wuarchive.wustl.edu." A woman in Florida or a man in Beijing can each retrieve the files they need from the database .A site's address generally says something about what kind of organizat