数学符号表示 meaning in English

mathematical symbolism

Although subjects easily answered simple problems expressed in mathematical symbols , words continued to stump them
虽然受试者可以轻松回答用数学符号表示的简单问题，但文字仍然使他们困惑。
According to the theory of input - output analysis and the features of coal industry , the coal resources input - output table filled by mathematical marks is constructed and the coal resources input - output mathematical model is built on the base of the table in the article . then the matrix of all demand coefficients " , that is the extended leontief converse matrix , is introduced under the condition of including coal resources department and pollution department and the general model of demand prediction of coal resources was concluded
本文主要运用投入产出分析理论以及根据煤炭工业本身的特点，编制出以数学符号表示的煤炭资源投入产出表，并根据此投入产出表建立煤炭资源的投入产出数学模型，推导出包含煤炭资源部门及污染处理部门情况下的完全需要系数矩阵，从而得出煤炭资源需求预测的一般模型。