Direct photometry的用法和樣例：
例句
- The mechanism of collagen mineralization was studied by ultraviolet photometry method.
用紫外分光光度法研究了膠原生物礦化的機理。 - So we assume spectro photometry to replace eyes determination.According this assumption, we provide a design method of a kind of auto chroma detector.
因此設想引入分光光度法代替人眼判定，並依據此設想提出一種可以自動測定污水色度的儀器的設計思路。
