5ÔÂ13ÈÕ£¬É½Î÷Ô˳ÇÍòÈÙ²úÇøÕûÌåÊ£Óà»õÔ´²»¶à£¬Öð½¥½øÈëÇå¿â½×¶Î£¬Ä¿Ç°Êг¡³ö»õ»ý¼«ÐԽϸߣ¬×ß»õÉпɡ£75#Ö½¼ÓĤ¿ÍÉÌ»õ2.3-2.4Ôª/½ï£¬80#Ö½¼ÓĤ¿ÍÉÌ»õ¼Û¸ñ2.8-3.5Ôª/½ï×óÓÒ£¬³É½»ÒÔÖÊÂÛ¼Û¡£