x轴类目轴名称一样数据合并了?

描述:当前是关于Echarts图表中的 示例。
 
            option = {
  
  legend: {
    x: 'center',
    top: '-4',
    icon: 'circle',
    textStyle: {
      fontSize: 14
    }
  },
  tooltip: {
    show: true,
    trigger: 'axis',
    axisPointer: {
      type: 'cross',
      crossStyle: {
        color: '#999'
      }
    }
  },
  toolbox: {
    show: false,
    top: '-6',
    right: '-6',
    feature: {
      magicType: {
        show: true,
        type: ['line', 'bar']
      },
      restore: {
        show: true
      }
    }
  },
  dataZoom: [{
    show: false,
    type: 'inside',
    minValueSpan: 20,
    maxValueSpan: 20,
  }, {
    show: false,
    minValueSpan: 20,
    maxValueSpan: 20,
    handleIcon: 'M10.7,11.9v-1.3H9.3v1.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4v1.3h1.3v-1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7V23h6.6V24.4z M13.3,19.6H6.7v-1.4h6.6V19.6z',
    handleSize: '80%',
    handleStyle: {
      color: '#fff',
      shadowBlur: 3,
      shadowColor: 'rgba(0, 0, 0, 0.6)',
      shadowOffsetX: 2,
      shadowOffsetY: 2
    }
  }],
  title: {
    textStyle: {
      fontSize: 16,
      fontWeight: 100
    },
    right: '0',
    top: '-6'
  },
  yAxis: [{
    type: 'value',
    splitNumber: 5,
    splitLine: {
      show: true,
      lineStyle: {
        type: 'dashed'
      }
    }
  }, {
    type: 'value',
    position: 'right',
    splitNumber: 5,
    splitLine: {
      show: true,
      lineStyle: {
        type: 'dashed'
      }
    }
  }],
  xAxis: {
    type: 'category'
  },
  dataset: {
      source: [
          ["区域","库存数","周转天数"],
    ["日化","13","14"],
    ["分拣","14","34"],
    ["日化","23","34"],
    ["日化分拣","0","0"],
    ["日化分拣","0","0"],
    ["日化分拣","0","0"]
          ]
  },
  series: [{
    type: 'bar',
    barWidth: '20'
  },{
    type: 'line'
  }],
  grid: {
    left: '0',
    right: '0',
    top: '25',
    bottom: '0',
    containLabel: true
  }, 
}