organic content短语¹³¹⁶²⁰⁺³ 基本例句 有机质含量 The determination method of organic content in peat coal has been studied in this paper. The organic/span> content in peat coal of Mianxian County of Shaanxi has been determined. 研究了泥炭有机质含量的测定方法，并对陕西勉县泥炭中有机质含量进行了测定。 cnki