Automatic allocation of secondary partition header pages for extending the extent map.
用于扩展区段映射的二级分区头文件页的自动分配。
2
Working in PHP, the code is practically the same as Listing 10, but you have to change the XML document header to include the required automatic styles element.
在php中工作时，上述代码实际上与清单10相同，但您必须修改XML文档以包含必要的自动样式元素。
3
First: to act as an automatic non-return valve by preventing a backflow of steam from the main steam header to the boiler.