photometric [ˌfoʊtə'metrɪk]

例句:

• Less critical is the situation in the case of photometric observation.
  做光度测量的条件就不那么严格了.
  
• The knowledge of this quantity is of importance for photometric measurements.
  这个量对于光度测量是很重要的.
  
• Photometric sensors are devices that measure energy in the visible spectrum.
  测光传感器是测定可见光谱中能量的仪表.