要在AG-GRID中将两行合并为一个单元格，请使用以下代码：

import { GridOptions } from 'ag-grid';

const gridOptions: GridOptions = {
  // ... other options
  getCellRendererParams: function (params) {
    // check if this row is going to spanning, and only altering the first cell in the row
    if (params.data && params.node.rowSpan !== undefined && params.column.colId === 'name') {
      return {
        // set the rowSpan accordingly
        rowSpan: params.node.rowSpan,
        value: params.data.name,
        // use a custom renderer to span this particular cell
        cellRenderer: 'myCustomSpanningCellRenderer'
      };
    }
  },
  components: {
    // the custom renderer to span a specific cell
    myCustomSpanningCellRenderer: function (params) {
      // check if this cell is the last in the span
      const isLastInSpan = params.node.rowIndex === (params.node.rowIndex + params.rowSpan - 1);
      return {
        // add some padding to the span cells except the last one
        style: isLastInSpan ? {} : { paddingBottom: '2px' },
        value: params.value
      };
    }
  }
};

这将使用自定义的渲染器扩展AG-GRID以在单元格中占用多行，并将两行合并为一个单元格。