【多选题】固体干燥剂吸附脱水:是利用多孔性的干燥剂吸附天然气中的水蒸气。固体干燥剂很多,天然气工业上常用的有()等。Solid desiccant adsorption dehydration: is the use of porous desiccant adsorption of water vapor in natural gas. There are many solid desiccant, si...
【判断题】固体干燥剂吸附脱水:是利用多孔性的干燥剂吸附天然气中的水蒸气。固体干燥剂很多,天然气工业上常用的有硅胶、活性氧化铝、铝矾土和分子筛等。Solid desiccant adsorption dehydration: is the use of porous desiccant adsorption of water vapor in natural gas. There are many solid...
【单选题】在Fe-Fe3C相图中,合金冷却通过PSK线时发生共析转变,生成的产物称为()。
【简答题】Carry out the method for High performance liquid chromatography (Appendix VI D). 1. Chromatographic conditions and system suitability test Use a column packed with octadecylsilane bonded silica gel an...
【单选题】The use of a ( ) gel and a high-density-pore-gradient resolving gel was primarily responsible for the success of this separation.
【简答题】在Fe-Fe3C相图中,合金冷却通过PSK时发生共析转变,生成的产物称为()。
【简答题】共析转变的产物称为________,铁碳合金的共析体是________(用文字表示),即铁素体和渗碳体的混合物。