photometer是什么意思_photometer怎么读_音标fәu'tɒmitә

photometer是什么意思音标:英 [fәu'tɒmitә]

n. 光度计, 曝光计
[化] 光度计

n. measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source