Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/8897b6d48a32516b6c87d46685b73918.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 prestressed concrete英英字典_prestressed concrete剑桥英语解释_prestressed concrete柯林斯英文解释_欧米惠必应词典
1. N concrete that contains steel wires, cables, etc, that are prestressed within their elastic limit to counteract the stresses that will occur under load 预应力混凝土