Note that although PHP's namespaces can be used for functions and constants as well as classes, the auto-loader technique only works for classes.
注意，尽管可以对函数、常量和类使用php名称空间，但是自动装载器技术只适用于类。
2
The Dyco plastic film roll Loader will assist an operator with unloading rolls of plastic film or bags from a shipping pallet and loading the rolls into Dyco's Fully Automatic or Semi-Auto Packers.