volatile compound短语¹⁴⁴⁹⁷²⁺² 基本例句 挥发性化合物 The application of5E- MAC type automatic analyzer in analyzing ash and volatile compound of cleaned coal, the verification for its reproducibility and accuracy were introduced. 介绍了5E- MAC全自动分析仪在焦化厂分析洗精煤灰分、挥发分上的应用，以及其重现性、准确度验证。 chemyq