There is only one such service and it abstracts all the other search services that have been defined in the portal.

此类的服务只有一个，它抽象在门户中定义的所有其他搜索服务。

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After uploading source text or retrieving abstracts from MEDLINE, users can extract sentences based on predefined or user-defined template categories.

在上传源文本或来自MEDLINE的检索摘要后，用户能够基于预定义的或用户定义的模板类别提取句子。

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Since the civilization progress is to be defined by the tracks or marks of human impact on nature, Liu Xuguang abstracts these marks and entrusts them with different connotation.

文明的进程是通过人类作用于自然留下的痕迹来识别的，刘旭光把痕迹抽取出来，赋予痕迹以多种含义。

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Looking at it from the application view, software defined power is the answer since it abstracts the application from power dependencies by allowing it to move between data centers.

FORBES: Why Software-Defined Data Centers Cost Much More Without Optimized Power and Cooling