approximatelyadv.大约；近似地approximateadj.近似的；大约的v.接近；约等于approximate optimization近似最佳化approximate phase center视在相位中心approximately ohservahie近似可观approximate distribution近似分布approximate shallow seam近浅埋煤层approximate polygonmethod多边形近似法approximate factor values近似要素价值Approximate Exposure Time近似曝光时间approximate straight line近似直线approximate factorization近似因子分解