Kirchhoff
/ˈkɪəkhɒf, 〈德〉ˈkɪrçhɔf/- Kirchhoff,Gustav Robert (1824-87), German physicist, a pioneer in spectroscopy. Working with Bunsen, he developed a spectroscope and discovered that solar absorption lines are specific to certain elements. He also developed the concept of black-body radiation and discovered the elements caesium and rubidium.基尔霍夫, 古斯塔夫·罗伯特（1824-1887, 德国物理学家, 波谱分析学先驱, 与本生合作研制了一台分光镜, 并发现太阳吸收谱线仅限于某些元素, 他还发展了黑体辐射的概念, 发现了元素铯和铷）。