这个包包含大量类，因此我不会详细讨论所有类，但是其基本内容还是有必要说明的。
The package contains numerous classes so I won't go over them all in detail, but it's worth taking a moment to cover the basics.
该包包括uri类，后者频繁用于Android应用程序开发，而不仅仅是传统的联网方面。
This package includes the URI class, which is used frequently in Android application development beyond traditional networking.
它也包括第二层数据包包头匹配定义的话务类别或class-default类（class）。
It also covers Layer 2 overhead for packets matching defined traffic classes or the class-default class.
最后，exception包包含SOAException基类。它用于记录错误条件并触发事务重试和恢复逻辑。
Finally, the exception package contains the SOAException base class, which is used to log error conditions and trigger the transaction retry and recovery logic.
Utility包包含xml解析器及用于构造基于SOATransactionDefinition文件(图2)的事务管理器的事务构造器类。
The utility package contains the XML parser and transaction builder classes used to construct a transaction manager based on the SOA transaction Definition file (Figure 2).
media包包含与媒体子系统交互的类。
The android.media package contains classes to interact with the media subsystem.
这个包包含usb . core .Host对象的Linux实现、bootstrapping支持和其他可以提升Linux usb支持的类。
Usb.linux: This package contains a Linux implementation of a usb.core.Host object, bootstrapping support, and other classes leveraging Linux usb support.
生成的SDO包包含一个DocumentRoot类，该类作为schema中定义的所有类型的根容器（图4）。
The generated SDO package contains a DocumentRoot class that acts as a root container for all the types that are defined in the schema (Figure 4).
sampled包包含从各种声源回放声音的类，和最多能混合 64声道的类。
The javax.media.sound.sampled package contains classes to play back sound from a variety of sources, as well as classes to mix up to 64 channels together.
access包包含了类库。
access包包含了类库。
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