名词
中文翻译：中线原则
同义词：
['central doctrine', 'central theory', 'central principle']
例句：
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1. Themeridian doctrine is a fundamental principle in the study of geography.
中线原则是地理学研究的基本原理。
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2.The meridian doctrine has been widely accepted by geographers around the world.
中线原则被世界各地的地理学家广泛接受。
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3.The meridian doctrine plays an important role in the development of navigation technology.
中线原则在航海技术的发展中起着重要作用。