é²æ²»æ¹æ³ï¼
1ãç¨æ¼ç½ç²1ppm浸泡ã
2ãç¨åå西æ1.5ppmï½2ppm浸泡ã
3ãç¨çº¢éç´ 0.3ppm浸泡ã
4ãç¨ç¡«é
¸é0.5ppmï½0.7ppmæ³¼æ´ã
5ãä¹°é»ç²ï¼ç¨åæ°´å°å ä¸ç¹çæ°´ï¼æ说æåå¼é»ç²ï¼æ³¡é±¼å个å°æ¶ï¼ç¶åæé±¼æ¾å
¥æ°´ä¸ï¼è¿ç»å 次ï¼å°ä¸æµ®å¤´ä¸ºæ¢ã
温馨æ示ï¼å¦å¤é±¼ç¼¸ä¹è¦éæ°æ¢æ°´æ¸
çï¼ä¿æ水质干åã
å¸æå¯¹ä½ æ帮å©ï¼æ¬¢è¿é纳ï¼
温馨提示:答案为网友推荐,仅供参考