As I indicate in the comments, the first block of code (lines 1-5) in Listing 1 handles parsing an input stream to build a document representation.

正如我在注释中指出的，清单1中的第一块代码(第1 - 5行)处理对输入流的语法分析，以构建文档表示。

youdao

The icon and connector provide the graphical representation and parameter definitions needed if you want to use a vi as a sub-routine or function in the block diagrams of other VIs.

图标和连接器提供了VI作为其他VI中的子程序或函数时的图形表示和所需的参数定义。

youdao

The icon is a VI's pictorial representation and is used as an object in the block diagram of another VI.

图标是子vi的图形化表示，在另一个VI的框图程序中作为一个对象使用。

youdao

Indeed, their power to block reform, through their representation in the federal republic's second chamber, the Bundesrat, may nowadays be too much.

ECONOMIST: Devolution can be salvation

Legislation sponsored by Senators Jim Inhofe and Ben Nelson and Representatives Roy BluntRon Paul is pending in Congress that would block UN taxation of Americans without representation.

CENTERFORSECURITYPOLICY: Clinton's soak the rich Americans