我有一个对象“Compact”，它由一个ID和两个数组组成：

public class Compact
    {
        public int Id { get; set; }
        public int[] Number { get; set; }
        public double[] Value { get; set; }

        public Compact(int id, int[] number,  double[] value)
        {
            Id = id;
            Number = number;
            Value = value;
        }
    }

Compact对象的列表可以按如下方式初始化：

List<Compact> c = new List<Compact>
        {
            new Compact(1, new int[] { 1, 2, 3 }, new double[] { 0.05, 0.02, 0.03 }),
            new Compact(2, new int[] { 1, 2, 3 }, new double[] { 0.07, 0.01, 0.04 }),
            new Compact(3, new int[] { 1, 2, 3 }, new double[] { 0.02, 0.025, 0.05 })
        };

我正在寻找一种优雅的方法将此对象展平为对象“Flattened”：

public class Flattened
    {
        public int Id { get; set; }
        public int Number { get; set; }
        public double Value { get; set; }

        public Flattened(int id, int number, double value)
        {
            Id = id;
            Number = number;
            Value = value;
        }
    }

展平的结果将对应于：

List<Flattened> f = new List<Flattened>
        {
            new Flattened(1,1,0.05),
            new Flattened(1,2,0.02),
            new Flattened(1,3,0.03),
            new Flattened(2,1,0.07),
            new Flattened(2,2,0.01),
            new Flattened(2,3,0.04),
            new Flattened(3,1,0.02),
            new Flattened(3,2,0.025),
            new Flattened(3,3,0.05)
        };

我可以使用循环进行扁平化，但是我想知道是否有更适合性能的方法，比如Linq操作或不同的集合类型？