清单 7 中定义的每个 GridCell 组件都包含一个 widget 值，这个值定义要在单元格的显示区中描绘什么。
Each GridCell component defined in Listing 7 contains a widget value that defines what's drawn in the cell's display area.
在此之后，您将使用以前计算出的值并描绘出每个单元格的完全边界，来创建一系列单元格以呈现列标题。
After that, you create a series of cells to render the column headings using the previously calculated values and drawing full borders for each cell.
应该提供一个流程图，该流程图描绘了从粗品到原料药分装前的提纯过程(即单元操作)。
A flow diagram should be provided that illustrates the purification steps (i. e., unit operations) from the crude harvest (s) up to the step preceding filling of the drug substance.
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