1. A symbol marking the beginning or end of some element of information such as a field, item, block tape, etc. ¼Ð©ú½Ñ¦p¦r¬q¡B¶µ¡B¦r²Õ¡B±aµ¥«H®§³æ¤¸ªº¶}©l©Îµ²§ôªº¤@ºØ²Å¸¹¡C 2. A tag or flag. ¤@ºØ¼Ð°O²Å©Î¯S©º¦ì¡C 3. Also tape mark. In some magnetic tape systems, a short block that identifies the data that precedes it or follows it. It is used in searching to eliminate the need to read the entire contents of headers. ¥ç«üºÏ±a¼Ð§Ó¡C¦b¬Y¨ÇºÏ±a¨t²Î¤¤,¥Î¤@ºØµu«H®§¶ô¼ÐÃѨä«e©Î¨ä«áªº¼Æ¾Ú,·j¯Á ¼Æ¾Ú®É¥Î¥¦¥i¤£»ÝnŪÀY¼Ð¤¤ªº¥þ³¡¤º®e¡C
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