### 首先，先确认马达加斯加语的专业术语翻译： 纳米级是 **nanometra**（或者nanômetrika，更常用的形容词形式），金红石型二氧化钛是 **titaoniôma iray amin'ny karazana rutia**，粉体是 **fotsy masiva**。组合起来自然流畅的马达加斯加语表达是： **Titaoniôma iray amin'ny karazana rutia amin'ny haavon'ny nanômetrika** 不对，更地道的语序应该调整为符合马达

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