The Application of YTB Oil Membrane Pumps in the Transportation of High Density Tailings
YTB型油隔离泵在尾矿高浓度输送的应用
The main factors affecting the induction and subculture of the mature embryo callus of YTA and YTB were analyzed .
分析了影响籼稻品种YTA与YTB成熟胚愈伤组织诱导及继代的主要因素。
ytb