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一、引言中国古代对于物理声学的研究,像物理学的其他部分一样,起源都是很早的。特别是有关乐律的知识和它的计算方法,远在纪元前四世纪,已经有了科学的、系统的研究和记载。几千年来,人们在实践中不断地丰富和发展了这方面的知识。对祖国古代乐律的研究,使我们能够在这一方面看出我们的祖先在文化科学上的辉煌成就。本文的目的在于叙述中国古代几种主要的乐律的定法和它们在物理学上的意义,不着重史实的详细叙述和考据。为了便于叙述,首先简单地谈一下有关乐律的最基本的知识。
I. INTRODUCTION In ancient China, the study of physical acoustics, like other parts of physics, had very early origins. In particular, the knowledge about the music and its method of calculation have been well studied and documented in the four centuries ago. For thousands of years, people have continuously enriched and developed this knowledge in practice. The study of ancient music in the motherland enables us to see the brilliant achievements of our forefathers in the field of cultural science in this respect. The purpose of this essay is to describe the laws of the several major types of music in ancient China and their significance in physics, without giving any account of the detailed narrative and test of historical fact. For the sake of narration, let us first briefly talk about the most basic knowledge of music.