土壤分類系統

土壤分類

土壤分類:1.USDA: 美國農業部三角座標分類法(Triangular Textural Classification System of U.S. Department of Agriculture),以砂土百分比為左上方之座標繪左上到右下之直線(↘)、以沈泥百分比為下方之座標繪左下到右上之直線...

USC Maps

Ever got lost around campus? Friends talking about this great place, but you don't know where it is? This great app will help you find it right aw...

feelforit

Recently updated to support iPad 2!...still also works on iPod Touch, iPhone, and iPad 1, too.feelforit was an IndieCade 2010 Finalist."...an abstract...