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# acceptable accuracy中文

• 允收準確度

### 例句與用法

1. to reduce huge computation of the traditional stochastic optimization methods for engineering optimization, approximation model methods with acceptable accuracy for engineering design are developed based on the statistical theory
摘要針對在工程中完全采用隨機類優化方法尋優時計算量過大的問題，應用統計學的方法發展了計算量小、在一定程度上可以保證設計準確性的近似模型方法。
2. for parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients . inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model . the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics
利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達后向散射模型;2).研究發現在農作物等矮小植被覆蓋地表，植被層直接后向散射與植被類型相關，且在植被生長期，雷達后向散射系數對植被含水量的敏感性要高于對植被高度變化的敏感性;3).解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題;4).利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響;5).在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse=0