According to the invention, the droplets contain at least one monomer and are coated with particulate solids during the polymerisation process.

根据本发明，所述液滴含有至少一种单体并在聚合工艺过程中用颗粒状固体涂覆。

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In a fluidised bed a fluid is passed through a bed of particulate solids at a velocity sufficient to provide an upward force equal to the weight of the particles, therefore buoying the particles.

在流化床中，流体通过固体颗粒床层，其流速足够产生一个与颗粒重量相等的向上的力。因此而使颗粒悬浮。

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