λÓÚ½ð±ßÄϽ¼£¬¾àÀëÊÐÇø15¹«ÀÔø¾ÊǺìÉ«¸ßÃ޵ļ¯ÖÐÓª¡£
1975Ä꣬²¨¶û²¼ÌØÁìµ¼µÄºìÉ«¸ßÃÞ¹¥¿Ë½ð±ß¶áµÃÕþȨ£¬´ËºóÈýÄê¼ä£¬¼íÆÒկʧȥÁËËý½üÈý·ÖÖ®Ò»µÄÈË¿Ú£¬¶øÇÒ¶àÊÇ֪ʶ·Ö×Ó¡£ËÀÔÚÕâÀïµÄ¶àÊÇÀ´×ÔS-21¼àÓüµÄ·¸ÈË£¬°üÀ¨ÄÐÅ®ÀÏÉÙºÍÓ¤¶ù£¬µ½Ä¿Ç°ÎªÖ¹ÔÚɱÈ˳¡ÍÚ³öµÄʬÌå¾ÍÓÐ9000¶à¾ß£¬ËùÒÔ´Ë´¦ÓÖ³ÆÍòÈˉV¡£
1988Ä꣬Õþ¸®Ôڴ˽¨ÁËÒ»×ù·ðËþ£¬ÓÃÀ´°²·Å´Ó·Ø‰VÀïÍÚ¾ò³öÀ´µÄÍ·¹Ç£¬½èÒÔ׷˼¼ÍÄîÎÞ¹¼µÄÍö»ê¡£