求翻译：在音乐创作中，某一技法之重要性的提升又往往是某种思维方式发生变化的具象体现，故而变奏更成为现代音乐创作中一种重要的结构原则与创作理念，也是本论文所研究的这三部管弦乐作品的重要结构原则与创作理念。是什么意思？

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In music creation, some technique the important promotion often is some thinking mode changes the embodiment to manifest, therefore the variation becomes in the modern music creation one kind of important structure principle and the creation idea, also is these three orchestral music work important

In music creation, an importance of skill upgrading and often a certain mindset change of image embodiment, so variations became an important structural principle in modern music creation and creative concept, this thesis studied the three orchestral works of important structural principle and creat

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