ç§ç®æ±æ»è¡¨æ¯å¹³çï¼å说æä½ æ ¹æ®
è®°è´¦åè¯ç»è®°çæ»è´¦åãè´·æ¹åºè¯¥æ¯æ£ç¡®çï¼æ»è´¦å
èµäº§è´åºè¡¨ä¸å¹³è¡¡æ大çåå æ¯ä½ çæ»è´¦ä½é¢ç»è®°æ误ï¼ä¹å°±æ¯å¨å²ä½é¢æ¶ï¼åå¨è®¡ç®é误ï¼ã
ä¼è®¡ç§ç®æ±æ»è¡¨æ ¹æ®åä¼è®¡ç§ç®æ»è´¦åãè´·æ¹å®é
çé¢æ±æ»ç¼å¶çï¼åºæ¬æ ¼å¼ä¸ºæåä½é¢+/-æ¬æåæ¹åçé¢+/-æ¬æè´·æ¹åçé¢ï¼ææ«ä½é¢ï¼æ¤å¤ï¼èµäº§è´åºè¡¨ä¹æ¯æ ¹æ®åä¼è®¡ç§ç®æ»è´¦ä½é¢ç¼å¶çï¼å³æ±æ»åç±»èµäº§ãè´åºåæçä¼è®¡ç§ç®æ»è´¦ä½é¢ï¼å¾å°èµäº§ä¸è´åºï¼æçï¼ç平衡ã