͸ˮĥºÄ²ã


ÇëÊäÈëÒª²éѯµÄ´Ê£º Çл»´Êµä

Èç¹ûδÄܲ鵽ÄúµÄ½á¹û£¬ÇëÓÅ»¯ËÑË÷ºóÖØвéѯ¡£

͸ˮĥºÄ²ã


[¹«Â·¿Æ¼¼ººÓ¢´Êµä]

͸ˮĥºÄ²ã
pervious wearing course

ÊÇʲôÒâ˼£¬Í¸Ë®Ä¥ºÄ²ãµÄ½âÊÍ£¬Í¸Ë®Ä¥ºÄ²ãµÄ·­Òë