由于流化床设备有极高的蒸发效率，颗粒悬浮在气流中，进行包衣，使得这一技术能广泛地适用于粒芯包衣。

This technique is widely applied to granule core coating because due to high evaporation rate of fluidized bed, the granule could be coated when suspended in the air stream.

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粒径在10到150微米的颗粒都可以很好地流化，小心地选择粒度分布可以使效率更高。

Particles in the range of 10 to 150 microns fluidise best and careful selection of the size distributions used leads to higher efficiency.

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论述了流化床锅炉脱硫原理及影响脱硫效率的主要因素，给出流化床锅炉脱硫系统改造设计中应注意的一些主要问题。

The main factors influencing sulphur removal efficiency of FBC is discussed, and some problems in the refurbishment and design of FBC desulphurization system are put forward.

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