ããè¿ç§æ¯è¡å¨çæ¯è¡å¹
度éè¦ç¨é线æ§ç稳å¹
çµè·¯æ¥éå®ã
ããå¾ä¸ç»åºççµè·¯ä¸æ²¡æ设计稳å¹
çµè·¯ï¼å æ¤å¦ææ¾å¤§å¢çå°äºçäº3ä¸ä¼èµ·æ¯ï¼å¦æ大äº3å¹
度ä¼è¶æ¯è¶å¤§ï¼ç´è³è¿æ¾é¥±åå²é¡¶ï¼åºï¼ï¼æè½ä½¿å¾
æ¯å¹
ä¸åä¸åãå æ¤å¹
度æ¥è¿çµæºçµåã