ããä¸ãå¯ä»¥ç¨ççã
ãã1å°æ°çº¸ç¨1ï¼
ç
ä¸æ°¯åé溶液浸éæå·æ´æ°éï¼
ãã2æ¾ç½®ä¸ææåï¼çº¸å¼ çé¢è²åé»ï¼
ãã3åè¿ä¸æ®µæ¶é´åï¼çº¸å¼ çé¢è²é»ä¸ç¥æ¾ç°è²ï¼çä¸å»å°±æäºæ§çº¸çæè§ï¼
ããäºãä¼ ç»æ¹æ³è¿æç¨è¶æ°´ãä¹æ¢
æ°´ã稻èå麦èæ°´åé
±æ²¹çï¼å°æ°çº¸æææ§çº¸ã
ãã1.æé
±æ²¹ç¨éä¸ä¸ï¼
ãã2.å¨ç½çº¸ä¸å·ä¸å±é
±æ²¹æ°´ï¼
ãã3.åçå¹²ï¼çä¸å»è±¡èå¤è£ä¸æ ·
ãã4.æ纸ä¸é¢å·ä¸å±è¶æ°´,太é³åºä¸æ´æ