利用岩相分析指标结合常规化学指标可以鉴定新煤种、分析供煤基地的煤质变化和发现异常煤，有效监控煤质情况，稳定焦炭质量。并提出针......

In this paper, we present a new voltage-mode biquad filter that uses a six-terminal CMOS fully differential current conv......