自定义1 = List.Transform(Table.ToRows(源),each List.RemoveNulls(_)),
自定义2 = Table.Combine(
    List.Transform(自定义1,
        each Table.FromColumns(
            { {_{0}} } & 
            List.Zip(
                List.Transform(
                    {1..(List.Count(_)-1)/2},
                    (x)=>List.Range(
                        _,
                        x*2-1,
                        2
                    )
                )
            )
        )
    )
)

Table.Combine(
    List.Transform(
        List.Transform(
            {0..List.Count(源[品名])/2-1},
            each List.Range( Table.ToRows(源) ,_*2,2)
        ),
        (x)=>Table.FromColumns({x{0}&{null},{},{},{},x{1}})
    )
)