å°±çä½ ç¨ä¸ä»ä¹å»ºçï¼ä¸çº§é¢ï¼åé¢ï¼æå¾å¥½çæé§æ§ï¼ä½æ¯åå¼¹åå¾å°ï¼å®¹ææé¿ï¼æ延伸çï¼å¤§å¤åºç¨ä¸æ¢æ¯æç®çï¼ç°æµæ¿ä¸å¤å¼å»ºççæ¿å¢ãäºçº§é¢ï¼èºçº¹é¢ï¼æå¾å¥½çæé§æ§åå¼¹åï¼å¨å»ºçè¡ä¸éåºç¨å¹¿æ³ï¼å¤§å¤ç¨äºæ¡æ¶æ¯æ±ï¼æ¢ãä¸çº§é¢èºçº¹ï¼å¾å°çæé§æ§ï¼ä¸æ¦å¼¯æ²å°±ä¸è½åç´ï¼è´è´£å°±æ¯ä¸¤æªï¼ä½æ¯æå¾å¥½ç硬度å¾å¼¹åï¼å¨é«æé建ç项ç®éä¹åºç¨å¹¿æ³ã
温馨提示:答案为网友推荐,仅供参考