Embryogenic suspension cell is ideal material of protoplast culture of gramineous plants.胚性悬浮细胞是禾谷类作物原生质体培养的理想材料.Wild rice stem belongs to herb of marsh of gramineous vivacious perennial root.茭白属于禾本科多年生宿根沼泽草本植物....
阐述了铜包钢线的特点及生产工艺.Characteristics as well as the production of copper - clad steel wire were described.简述了自动合金化模型在包钢钢包炉上的应用.The paper discusses the application of LF automatic alloying technology.介绍了铜包钢线材的类型 、 性能、应用领域以及生产方...