Warning: file_put_contents(): Only 0 of 6270 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 paraboloid英英字典_paraboloid剑桥英语解释_paraboloid柯林斯英文解释_乐豆毛深蓝词典
1. N a geometric surface whose sections parallel to two coordinate planes are parabolic and whose sections parallel to the third plane are either elliptical or hyperbolic. Equations x²/a² ± y²/b² = 2cz 抛物面