采用草酸沉淀法研究制备了大颗粒氧化钇，并对各制备条件对氧化钇粒度影响进行了分析讨论。
The large particle yttrium oxide was prepared using oxalic acid as precipitation agent. The effects of preparation conditions on the particle size of yttrium oxide were discussed.
稀土草酸盐沉淀法是制备稀土氧化物的主要方法。
Precipitation by oxalate is the primary method to produce rare earth oxides.
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