Each of the three systems under discussion, having been created to serve specific needs, embody shortcomings that constrain wider applicability outside their realms of focus.

根据前面的讨论，这三个系统中的每一个都被创建来服务特定的需求，同时他们也都有缺乏对他们侧重领域之外的更广适应性的缺点。

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The gold ore deposits are mainly distributed in the north China platform, Yangtz platform and Tethys, the three tectonic-metallogenic realms.

金矿床（ 点）主要分布在华北地台、扬子地台和特提斯三大构造成矿域中。

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Russian Sinology has a history of about three hundred years, and it is one of the most productive realms of Asian studies in my country.

俄罗斯的汉学研究已有大约三百年的历史，而且是俄罗斯亚洲研究中最富有研究成果的领域之一。

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"The three coaches work off each other, they're tremendously experienced and have had successes and failures in other realms of coaching, " Oliver said.

BBC: Oliver is one third of the All Blacks' formidable front row