高位侧光一般用于拍摄人像，通常称为“伦勃朗用光法”，这种用光方式强调边缘和深度。
Light emitted from above and to the side when applied to portraits creates what is often referred to as "Rembrandt lighting". This form of lighting emphasizes edges and depth.
地面水一般带色且浊，采用光度法分析水样中总磷时，会使测定结果偏高。
Surface water is generally coloured and turbid. When total phosphorus is analyzed by luminometer, the monitoring result will be somewhat high.
研究生迈克尔·塞格纳托维茨先是将一些钾铌氧化物堆积到硅表面，接着用光学显微镜拍摄了这幅图片，看上去像一个遥远的星系一般。
After depositing some potassium niobium oxide onto a silicon surface, graduate student Michael Sygnatowicz used an optical microscope to take this photograph, resembling a distant galaxy.
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