Sixteen cotton cultivars widely planted in China were sowed under five different drought concentrations (0, 2.5, 5, 7.5,......

为了探讨深部煤层含气量的有效预测方法,以晋城矿区3号煤层为对象,将支持向量机方法用于建立煤层含气量预测模型。选取煤厚、镜质......