Acquiring a subtype lock without holding a nonsubtyped lock of the parent type is technically valid 从技术角度而言，可以在未持有父类型的非子类型化锁的情况下获取子类型锁。
Do throw system . argumentexception or one of its subtypes if bad arguments are passed to a member 如果向成员传递了错误的参数，则引发system . argumentexception或其子类型之一。
Hierarchical relationship . class hierarchies are useful when describing items that are a subtype of a more general class 当描述作为更常规类的子类型的项时，类层次结构非常有用。
Code within the type that declares a private element , including code within contained types , can access the element 声明private元素的类型（包括该类型的子类型）中的代码可访问该元素
" which describes the basic structure of mime types , including the type subtype division and the use of the ” ，该文描述了mime类型的基本结构，包括类型/子类型的划分和未注册类型适用的
The annotation client asks the user to choose the semantic content of the annotation target area from the data source subtypes returned by passing 注释客户端要求用户从数据源子类型（通过将
Class with the specified identity reference , access control type , child type , and active directory security inheritance 使用指定的标识引用、访问控制类型、子类型和active directory安全继承来初始化
Of an annotation consists of the data source types , data source subtypes , point types , and point subtypes of the points being annotated 由数据源类型、数据源子类型以及被注释的指针的指针子类型组成。
A third advantage of static factory methods is that , unlike constructors , they can return an object of any subtype of their return type 第三个好处是，与构造函数不同，它们可以返回一个原返回类型的子类型的对象。
Specifies that the class is nested with family visibility , and is thus accessible only by methods within its own type and any subtypes 指定此类是用族可见性嵌套的，因此只能由它自己的类型和任何子类型中的方法访问。
