That means with reduction of particle size of coal, the surface structure gets complex and analysis dimension gets high, therefore, it is helpful for combustion.
说明随着煤颗粒粒度的减小，表面结构愈复杂，其分析维数愈高，对燃烧愈有利。
参考来源 - 超细煤粉燃烧机理研究METHODS:With granule size,fluidity and yield as indexes to optimize the dry granulating technology for cefuroxime axetil tablets,and a comparative study was conducted on quality and stability of the samples prepared by wet process.
方法:以颗粒粒度、流动性及成品率为考察指标,筛选干法制粒的工艺条件,并进行质量考察和稳定性研究。
参考来源 - 头孢呋辛酯片干法制备工艺条件研究·2,447,543篇论文数据，部分数据来源于NoteExpress
通常使用剪切力减小颗粒粒度。
Decreasing the particle size is usually conducted by applying a shearing force.
颗粒粒度的测定已成为现代测量学的一个重要分支。
Particle size measurement has become an important branch of modern surveying.
粒度测试是指通过特定的仪器和方法表征颗粒粒度特性。
Measuring particle size is to exhibit the particle size characteristics via special instruments and methods.
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