提出特征是某一应用领域内具有特定意义的实体或抽象体。
OS abstractor also is being adapted and validated to interoperate across an additional operating system for this build.操作系统抽象层适合用于跨操作系统的互操作。
With OS abstractor, developers use a standard API interface across several OS platforms, reducing the costs and time associated with code maintenance and learning several operating systems.开发人员通过运用操作系统抽象层，可使用跨多种操作系统平台的标准API，降低与编码维护和学习几种操作系统相关的成本，缩短相关时间。
