å 积çå ä½æä¹ï¼
å 积å®è´¨å°±æ¯æ°é积æè ç¹ç§¯ã
该å®ä¹åªå¯¹äºç»´åä¸ç»´ç©ºé´ææã
è¿ä¸ªè¿ç®å¯ä»¥ç®åå°ç解为ï¼å¨ç¹ç§¯è¿ç®ä¸ï¼ç¬¬ä¸ä¸ªåéæå½±å°ç¬¬äºä¸ªåéä¸ï¼è¿éï¼åéç顺åºæ¯ä¸éè¦çï¼ç¹ç§¯è¿ç®æ¯å¯äº¤æ¢çï¼ï¼ç¶åéè¿é¤ä»¥å®ä»¬çæ éé¿åº¦æ¥âæ ååâãè¿æ ·ï¼è¿ä¸ªåæ°ä¸å®æ¯å°äºçäº1çï¼å¯ä»¥ç®åå°è½¬åæä¸ä¸ªè§åº¦å¼ã