例句與造句

1. The soil in copper - ore - tailings reservoir was compared with that in reference lands to find out the differences between them in physical and chemical natures and in heavy metals pollution
   通過合理選擇不同對照地，從土壤的理化性質、被污染程度比較，為尾礦庫復墾的土壤改良提供依據。
2. In conclusion , by the setting and application of double series of reference land units , we can get reasonable classification results ; moreover , the reference land units method has some study and application values which can provide as a reference method or model for other counties in china
   總之。優質、劣質雙向式標準樣地體系的建立與應用，不僅能夠得到可靠的分等結果，而且具有一定的研究與應用價值，可為我國縣域樣地法分等提供方法與模式參照。
3. These imply that the spatial distributions of the different grades of the arable land , classified by the reference land unit method , reflect reasonably the spatial changes of geomorphological units and soil types . the linear estimation model between comparable productions and the corresponding quality ratings of 210 sample units shows that the coefficient of determination r2 is 0 . 876 , which means that 87 . 6 % of the change of y is explained by the change of x . it is concluded that the arable land quality ratings calcul ated by the method can reflect the biologic productivities of land
   另外，利用210個樣點單元的標準糧產量( y )與其對應樣地法土地質量分( x )進行線性擬合，判定系數r ~ 2等于0 . 876的含義是指y的變異中有87 . 6是由x引起，表明了樣地法土地質量分的高低較好地反映了耕地的生物生產力水平。
4. It's difficult to find reference landing in a sentence. 用reference landing造句挺難的