Use cases and the supporting artifacts are invaluable drivers for identifying and creating Unit, Function, System Integration, and User Acceptance tests.
对于识别和创建单元、功能、系统集成，以及用户验收测试来说，用例和相应的支持工件是价值无法估量的驱动。
Decide which elements of SOA technology or SOA function are your priorities to implement (see Identifying the immediate scope of concern).
决定SOA技术或SOA功能的哪些元素应该优先实现(请参阅确定所涉及的直接范围)。
To check for support for a particular codec, you can pass an identifying string to the canPlayType function.
为了检测对特定的一个编解码的支持，可以向canplaytype函数传递一个识别字符串。
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