5ÔÂ19ÈÕ£¬É½Î÷Ô˳ÇÍòÈÙ²úÇøÀä¿âµ±µØ»õÔ´»ù±¾¶©¹º½áÊø£¬Àä¿â½»Ò×ÒÔÍâµ÷ÉÂÎ÷µÈ²úµØ»õԴΪÖ÷¡£75#Ö½¼ÓĤ¿ÍÉÌ»õ2.3-2.4Ôª/½ï£¬80#Ö½¼ÓĤ¿ÍÉÌ»õ¼Û¸ñ2.8-3.5Ôª/½ï×óÓÒ£¬³É½»ÒÔÖÊÂÛ¼Û¡£