探讨了发变组保护与发电机励磁系统的一些相关问题，提出了这两个系统协调工作的方法。
This article discussed some relative problems between the generator-transformer protection and the excitation system, and provided the coordination methods of the tow system.
如何更好地协调保护资源、教育并服务大众是旅游景区的主要职责，旅游解说系统是一种有效而关键的管理手段。
Interpretation system plays a very important role in the preservation of resources, education of the public and serving the public in tourist areas.
这一微生态系统与人体固有的肠道屏障系统相互协调、相互作用，保护人体肠道免于致病菌的侵袭。
The micro-ecosystem is able to protect intestinal mucosa against the invasion of pathogen both by itself and by synergies between it and human inherent intestinal barrier.
这一微生态系统与人体固有的肠道屏障系统相互协调、相互作用，保护人体肠道免于致病菌的侵袭。
The micro-ecosystem is able to protect intestinal mucosa against the invasion of pathogen both by itself and by synergies between it and human inherent intestinal barrier.
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