Warning: file_put_contents(/www/wwwroot/ppbbu/bieo.cn/cache/a787d92b7b02c9ad53ab5fe8490f4931.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/bieo.cn/index.php on line 58 imperfect elastic collision是什么意思，imperfect elastic collision的翻译，imperfect elastic collision音标、读音、用法和例句_衣物护欧路词典