12ÔÂ25ÈÕ£¬»ÆÁê²úÇø¿âÄÚ¹ûÅ©»õ¼Û¸ñÔÝÎÈ£¬Ä¿Ç°70#ÒÔÉϹûÅ©Ò»°ã»õ3.0-3.4Ôª/½ï£¬70#ÒÔÉϹûÅ©ºÃ»õ3.5-3.8Ôª/½ï£¬¿âÄڸߴÎ1.8-2.5Ôª/½ï£¬¿´»õ¶¨¼Û¡£²úµØ¿´»õ¶©»õ¿ÍÉÌÓÐËùÔö¶à£¬°´Ð豸»õ£¬Ëæ×ÅÔªµ©µÄÁÙ½ü£¬×ß»õÓÐËù¼Ó¿ì¡£Ö÷Á÷½»Ò×¼Û¸ñΧÈÆ3.5-3.8Ôª/½ï¡£