Glossary term: 折射
Description: 折射是波（具體來說是光）從一種介質傳播到另一種介質時改變方向的方式。這種變化的幅度和方向取決於兩種介質的"折射率"，而"折射率"又取決於光在每種介質中的速度，這種關係用數學形式表示為斯涅耳折射定律。光線進入玻璃的方式可以用來製造透鏡，透鏡將平行光線（例如遙遠恆星的光）聚焦，這就是折射望遠鏡成像的主要原理。折射還取決於入射光的波長，所以可以像三稜鏡一樣用來將光線按波長分成不同的基本顏色，這對於記錄和研究光譜非常重要。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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