The average particle size distribution increased with the increase of the concentration of oxalic acid .

粒子的平均粒度随草酸含量的增加而加大。

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TEM images indicated average particles size does not change with the mixture ratio of styrene versus MMA and particle sizes distribution was narrow with the presence of MMA.

乳胶粒子的透射电镜照片显示：乳胶粒子的平均粒径不随单体用量比例的变化而改变，但乳胶粒子的粒径分布随着MMA单体的加入而变窄。

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PTA as the main composition of the slurry, have direct influence on the slurry properties. Effect of average particle size and its distribution on slurry properties are discussed.

PTA作为浆料的主要成分直接影响到浆料的性能，其中PTA平均粒径的大小和粒度分布情况对浆料性能影响较大。

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