ÌâÄ¿ÄÚÈÝ

ÎÒÃdz£ÓóÉÓï¡°±ùɽһ½Ç¡±ÐÎÈÝÊÂÎïÏÔ¶³öÀ´µÄ½ö½öÊÇÆäºÜСµÄÒ»²¿·Ö¡£ÊÂʵÉÏ£¬±ùɽ¸¡ÔÚº£Ë®ÖеÄȷֻ¶³ö¡°Ò»½Ç¡±£¬ÄÇô£¬½þûÔÚº£ÃæÖ®ÏµIJ¿·ÖÔ¼Õ¼±ùɽ×ÜÌå»ýµÄ________%( ¦Ñ º£Ë®£½1.03¡Á10 3 kg/m 3£¬¦Ñ ±ù£½0.9¡Á10 3 kg/m 3)¡£

87.4 ¡¾½âÎö¡¿½â´ð£ºÒòΪ±ùÔÚº£ÃæÉÏ´¦ÓÚÆ¯¸¡×´Ì¬£¬ËùÒÔF¸¡£½GÎï¼´¦Ñº£Ë®gVÅÅ£½¦Ñ±ùgV±ù,ËùÒÔ87.4%£»
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø