direct precipitation process 直接沉淀法
direct precipitation law 直接沉淀法
direct precipitation wet method 液相直接沉淀法
liquid-phase direct precipitation 液相直接沉淀法
the direct precipitation wet method 液相直接沉淀法
direct precipitation in liquid phase 液相直接沉淀法
direct precipitation from aqueous solution 水溶液沉淀法
direct co-precipitation 直接共沉淀法
The direct precipitation process in which ethanol was used as the medium could be applied to synthesize other nano oxides such as magnesium oxide,stannic oxide,aluminum oxide and some stable ZrO2 ceramic powder.
采用乙醇为介质的直接沉淀法还可应用于其他纳米氧化物如氧化镁、氧化锡、氧化钛的制备。
参考来源 - 液相直接沉淀法制备分散纳米金属氧化物·2,447,543篇论文数据，部分数据来源于NoteExpress
The results showed that homogeneous precipitation method is superior to direct precipitation method and adding surfactants is useful to improve powder reuniting.
结果表明：均匀沉淀法优于直接沉淀法；表面活性剂的加入有利于改善粉体团聚。
The advantage and disadvantage of the five recycling methods, direct heating, direct aqueous vapor, indirect aqueous vapor, reduced pressure distillation, precipitation method, is discussed.
探讨了直接加热法、直接水蒸汽法、间接水蒸汽法、减压蒸馏、酒精沉淀等五种回收方法的优缺点。
In this paper, preparation processes of amorphous silica using Henan Zr-containing silica residue as raw materials with chemical precipitation and direct neutralization methods were researched.
本论文以河南锆硅渣为原料，研究了分别采用化学沉淀法和直接中和法制备白炭黑的技术和工艺。
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