ãã2代表æ¯æ¯æ°éï¼L代表æ¯çLå½¢è§é¢ï¼125代表æ¯çè§é¢è¾¹é¿åº¦ï¼8代表çæ¯å度为8mmï¼
ããé¢ç»ææ¯ä¸»è¦ç±é¢å¶ææç»æçç»æï¼æ¯ä¸»è¦ç
建çç»æç±»åä¹ä¸ãç»æ主è¦ç±
åé¢åé¢æ¿çå¶æçé¢æ¢ãé¢æ±ã
é¢æ¡æ¶çæ件ç»æï¼åæ件æé¨ä»¶ä¹é´é常éç¨çç¼ãèºæ æééè¿æ¥ãå å
¶èªéè¾è½»ï¼ä¸æ½å·¥ç®ä¾¿ï¼å¹¿æ³åºç¨äºå¤§ååæ¿ãåºé¦ãè¶
é«å±çé¢åã