Warning: file_put_contents(/home/www/wwwroot/zidian/69228.com/cache/af2557a9a7ab44b315614cfdb19844c4.txt): failed to open stream: No space left on device in /home/www/wwwroot/zidian/69228.com/index.php on line 55 青青草青青操,在线无码中文字幕一区
It was showed that the lower elastic modular of rigid concrete, the higher proportional limit and peak strain. 成果表明：試騐所用的剛性混凝土彈模值較低，比例極限較高，峰值應(yīng)變較大；