Its aim is to abstract away some of the complex platform-specific details of dealing with files and directories and to give programmers more power and flexibility, and it has achieved this well.
其目的是抽取处理文件和目录时所涉及的复杂的、平台特定的细节，并能较好地为程序员提供更强大的功能和更多的灵活性。
People rely on their spatial knowledge to build many other more complex or abstract representations including time, number, musical pitch, kinship relations, morality and emotions.
人们依靠空间知识，形成了了更为复杂抽象的，包括时间、数字、乐器音调、亲属关系、道德和情感在内的想象力。
Abstract: : With the global economic liberalization, technical barriers to trade (TBT) become more complex and more stringent.
摘要：随着全球经济自由化，技术贸易壁垒(TBT)越来越复杂、越来越严格。
Rated current of the most abstract and most complex engineering- software engineering, more natural no exception.
堪称当今人类最抽象、最复杂的工程——软件工程，自然更加不能例外。
Abstract: : With the number of urban underground parking increasing, grade is higher and higher, facilities are more and more complex, and energy consumption is also more and more large.
摘要：随着城市地下停车场数量的增加，档次越来越高，设施越来越复杂，能耗也越来越大。
Abstract: : Along with the network structure more complex, but also further improve the requirements on the security and stability of the system.
摘要：随着电网结构的愈加复杂，对系统的安全稳定性要求也进一步提高。
Abstract: : Along with the network structure more complex, but also further improve the requirements on the security and stability of the system.
摘要：随着电网结构的愈加复杂，对系统的安全稳定性要求也进一步提高。
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