1ÔÂ29ÈÕ£¬ÉÂÎ÷μÄϳγDzúÇø¹ûÅ©»õ¼Û¸ñÔÝÎÈ£¬75#ÒÔÉϹûũͨ»õÖ÷Á÷¼Û¸ñ2.3-2.7Ôª/½ï£¬65-70#¹ûÅ©»õ1.5-1.7Ôª/½ï£¬ÒÔÖÊÂÛ¼Û¡£ÁÙ½ü´º½Ú£¬×ß»õËٶȼӿ죬¿ÍÉÌÒÔ·¢×Ô´æ»õÔ´»ò½»Ò×¹ûÅ©ºÃ»õΪÖ÷¡£