Small particle size; good mechanical stability.
粒径小；机械稳定性好。
So the control of very small particle sizes is important to the paint industry.
所以在油漆工业，控制很小的粒子的尺寸是非常重要的。
MgO powders, with small particle size, loose structure and high strain energy, have high activity.
晶粒细小，结构疏松，应变能大的氧化镁粉末具有较高的活性。
This particle has a very small mass.
这种粒子的质量很小。
This particle has a very small mass.
这种粒子的质量很小。
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