However, in current library service field, a set of specific and systematic service policy and system that can provide regulation and basis to library services is yet to be set up.
然而,在当前的图书馆服务领域,还没有一套明确的、系统化的服务政策与制度,为图书馆的服务活动提供管理的规范和依据。
Test results show that the regulator operates well in the regulation of field current and the reversal of field current...
试验结果表明该调节器可以很好的调节励磁电流,并能可靠地实现励磁电流的反向。
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