mnb
- 网络莫安达
mnb-
The Curie_temperature of some La 1 - x A x ( MnB ) O 3 perovskite manganates with colossal magnetoresistance was tested .
测定了La1-xAx（MnB）O3（A为二价元素）型巨磁电阻钙钛矿化合物在不同组成时的Curie温度。
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Using menadione sodium bisulfite ( MSB ) and nicotinamide as raw materials , effects of reaction conditions on synthesis of menadione nicotinamide bisulfite ( MNB ) at room temperature were investigated .
以亚硫酸氢钠甲萘醌（MSB）和烟酰胺为原料，在常温下合成了稳定型维生素K3（MNB）并对影响反应的因素进行了考察。