During the devolatilization, the hollow structure of coal particles is formed due to the rapid release of volatile, which can result in more rapid combustion of char particles.
热解时挥发份的迅速释放及煤的热塑性导致了颗粒内部的空心结构，这种结构有效地提高炭粒的燃烧速率。
The hollow microsphere can be applied in the fields of drug controlled release, enzyme fixation and catalyst when wrapping drug, enzyme or catalyst.
当空心微球包裹有药物、酶或催化剂时，可应用于药物缓释、酶固定化和催化剂领域。
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