This makes objects very clean and reusable, and if dependencies are declared in terms of interfaces instead of specific classes, it also makes them very easy to unit test.
这使得对象非常简洁，具有可用性。如果依赖是通过接口声明而非确定的类，同样可以使得相关对象非常易于进行单元测试。
This notifies the validation framework that any unit declared by this package should be validated by this domain validator.
这将会通知该包所声明的确认框架应该由域确认器来确认。
They are not visible to procedures or functions declared within the same unit.
他们是不可见的程序或函数在同一单位申报。
A special unit to be called the crime Prevention Bureau has been set up in this city to deal with computer crimes, the local police declared on Friday.
当地警方在星期五宣称，该市已成立一个名为犯罪预防局的特别机构以对付计算机犯罪。
A special unit to be called the crime Prevention Bureau has been set up in this city to deal with computer crimes, the local police declared on Friday.
当地警方在星期五宣称，该市已成立一个名为犯罪预防局的特别机构以对付计算机犯罪。
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