"查查詞典"手機(jī)版
千萬人都在用的超大詞匯詞典翻譯APP
- Eng . ) we teach soil definition , soil classification , soil architecture and physical properties , soil aeration and temperature , soil colloids , soil acid , alkalinity and salinity , soil organisms , soil organic matter , nitrogen and sulfur economy of soils , soil phosphorus , potassium and micronutrients , practical nutrient management
中)主要講述土壤的基本定義,土壤的化育、生成與分類,土壤的物理、化學(xué)與生物特性,土壤的通氣與溫度,土壤膠體特性,土壤的酸性、堿性和鹽性,土壤中的元素,土壤管理等。