nanometer material scale的用法和樣例：
例句
- Nami pearl powder points to that with its diameter reaching the nanometer grade.
納米珍珠粉是指在直徑上達到納米級的珍珠粉。 - The research and development of nanometer-sized solid powdermaterials are a topic of general interest in the material field at present.
對納米級固體粉末材料的研究與開發是當前材料領域中非常熱點的課題。
