“density measurement with shadow method”的概念、定义、翻译、参考文献-科学参考

单词	density measurement with shadow method
释义	density measurement with shadow method Encyclopedia 工学阴影法测量密度释 density measurement with shadow method阴影法测量密度利用光在被测流场中的折射率梯度变化（二阶导数）正比于流场气体密度的原理进行密度测量的方法，主要用于高速流场的定性研究。又称傅科刀口法，在光学中是最为简单的一种测量方法。
随便看	Ancient Society Ancient Sogdian Letters ancient sports in foreign countries Ancient Subsistence Study ancient.sunspot observation ancient systematic scientific thought Ancient Tea Garden at Yushan ancient tea set ancient thread stitching ancient timers Ancient Tombs at Baling Hill Ancient Tombs at Leigudun Ancient Tombs at Liudingshan Ancient Tombs at Longtoushan Ancient Towpath ancient tree group in Eryuan County ancient trees in Beijing center Ancient Trees in Mount Tianmu ancient trees in the Ming Tombs, Changping ancient trees in the Tanzhe Temple ancient trees in the Temple of Heaven Park ancient trees in Xiangshan Park Ancient Villages in Southern Anhui–Xidi and Hongcun World Culture Heritage ancient water conservancy projects in the Mesopotamia ancient water conservancy projects in the Nile valley

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