英语词汇“particle concentration”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	particle concentration
释义	particle concentration 基本例句粒子浓度 Particle concentrations in the upper atmosphere drop regularly as the altitude rises.在高层大气中粒子浓度随高度的增加而有规律地下降。
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