12ÔÂ7ÈÕ£¬ÉÂÎ÷»ÆÁê²úÇø¿âÄÚ¹ûÅ©»õ½»Ò×»ºÂý£¬Ä¿Ç°70#ÒÔÉϹûÅ©Ò»°ã»õ3.3-3.4Ôª/½ï£¬70#ÒÔÉϹûÅ©ºÃ»õ3.5-3.8Ôª/½ï£¬¿âÄڸߴÎ2.0-2.5Ôª/½ï£¬¿´»õ¶¨¼Û¡£¹ûÅ©³ö»õÒâÔ¸ÔöÇ¿£¬µ«¿ÍÉ̵÷»õ²»»ý¼«£¬ÈÔÒÔ·¢×Ô´æΪÖ÷¡£