平面坐标转化经纬度,求高手给C#方法,将下列坐标转化成经纬度

53950.6596698691.8174

53978.5871298683.67092

53362.8126698724.84873

53863.99434101142.28989

48409.903699993.28906

50908.5116898174.50808

49099.0016198492.81168

52512.84237x0598539.16967

53351.11115x0598716.80958

51750.78065x05100777.04986

51747.37379x05100800.72085

51751.03526x05100828.39794

51761.01429x05100848.26565

51763.52895x05100875.76738

51799.82924x0599606.68054

53960.04626x0598516.41725

52940.37434x0598385.55078

51415.60828x05100887.84154

52718.39066x0598113.226

52542.09198x0598108.36898

52855.44734x0598633.82289

52854.8673x0598634.34291

52852.80505x0598658.28901

52830.66831x0598686.15015

51666.11801x05100025.7744

51576.32007x05100110.36634

51684.53488x05100016.75806

52636.69159x05101048.78356

54219.35851x0599337.31141

52895.52269x0599786.95608

53594.98016x0599531.0607

53793.77928x0599097.43091

53842.72084x0599201.58807

52529.97165x0598107.17394

52208.58331x0598495.08516

52607.86174x0598105.80591

52127.80094x05100741.29082

51702.23257x0599999.80498

51672.28341x0599918.96026

51668.73442x0599905.13575

53959.0292x0598524.13155

54012.52559x0598501.31865

53851.30291x0598570.66164

53927.77228x0598440.77587

53959.25369x0598668.27386

53957.63539x0598736.75414

53965.42987x0598763.66936

52892.10373x0599626.01405

52494.40556x0598222.1677

52488.76578x0598273.5633

52914.88189x0598349.55232

52222.88815x0598543.73323

54494.01948x0599532.40744

54313.27314x0599521.09428

53890.96533x0599526.48268

53900.05428x0599558.18087

53647.07271x05