Warning: file_put_contents(/www/wwwroot/ppbbu/73904.com/cache/a1ceefc19ba46b0cfaedfb2aacb39035.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/73904.com/index.php on line 55 be of easy virtue例句_be of easy virtue英汉例句_be of easy virtue双解例句_骑士汉英词典
This model has the virtue of the directed hypergraph and is easy to be realized through object-oriented programming. 面向对象的有向超图参数化设计模型，用面向对象的程序设计方法可以很容易的实现。