The query expression is a building block that can be assembled to define the final selection predicate for the query.
该查询表达式是一个构建块，可以通过组装它为查询定义最后的选择谓词。
It also provides a method to define a set of hard and soft disk block and file allocation limits and the grace periods before the soft limit becomes enforced as the hard limit.
它还提供了一种方法来定义一组磁盘块和文件分配的硬、软限制，以及软限制强制实施为硬限制前的过渡期。
In Listing 4, I define product as a code block accepting two parameters.
在清单4中，我将product定义为一个代码块，它接受两个参数。
In this case, we define a custom factory and move some of the initialization from the _main_ block to the factory.
在这个示例中，我们定义了一个定制工厂，并将一些初始化代码从_ main _块移到了该工厂。
I define adaptor as a code block (delimited by in Groovy).
我将adaptor定义为一个代码块(使用Groovy中的界定)。
We could define the callback function in the same code block, but with a name.
我们可以在同一个代码块中定义回调函数，但是使用一个名称。
Because the entire body of the method is a single block, I can define and use local variables within the body without any problems.
因为整个方法是一个块，所以我可以毫无问题地在正文中定义并且使用局部变量。
Define the enumeration in the main program block, inside a class, inside a package, or in a function.
在主程序块、类、包或函数内部定义枚举。
Define the enumeration in the main program block, inside a class, inside a package, or in a function.
在主程序块、类、包或函数内部定义枚举。
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