It is more rational and logical than the current PRC Specificat ion (TJ 17-74) in regard to the method for determining the effective lengths of mill building stepped columns.
比我国现行的《钢结构设计规范》（TJ 17-74）中，关于阶形柱计算长度的取值更为合理和更强的逻辑性。
Meanwhile analysis was made on how primary air, concentration of pulverized coal, mill outlet temperature and pulverized coal fineness affected ion ignition.
为此分析了点火过程中一次风速、煤粉浓度、磨煤机出口温度和煤粉细度等对等离子点火的影响。
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