This is especially important when APIs declare abstract methods see, e.g.
这在API被声明为抽象方法时尤其重要。
Remember that you need to add the necessary inherited abstract methods for your class.
请记住，您需要为类添加必要的继承抽象方法。
Most of these methods, however, are not abstract.
但是这些方法大多数不是抽象的。
ABSTRACT Traditional methods of turbomachinery design have made great success.
叶轮机传统的设计方法已取得了很大的成功。
The majority of the data access methods are available through the abstract Database class.
大多数的数据访问方法是有效的，在抽象的数据库类中。
The majority of the data access methods are available through the abstract Database class.
大多数的数据访问方法是有效的，在抽象的数据库类中。
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