topsoil是什麼意思_音標_用法_例句

簡單釋義：

n. 表土；表土層

網絡 表層土；上層土；耕層

變形：

過去分詞：topsoiled  現在分詞：topsoiling  第三人稱單數：topsoils  

完整釋義：

n.

1.表土,表層土壤,表面土壤
2.表土;耕作層土壤
3.上層土;表層土
4.土壤上層
5.耕層
6.植物生長層

例句：

1. Angkor may have suffered problems common to modern times, including deforestation, overpopulation, topsoil degradation and erosion.
   吳哥可能已經遭受過和現代相同的問題，包括濫伐森林，人口過剩，表土退化和侵蝕。

2. Conserving the earth's topsoil by reducing erosion to the rate of new soil formation or below, involves two principal steps.
   通過將地球表層土的受侵蝕速度降低到新土形成的速度甚或更低，來保護表層土，其中包括兩個關鍵步驟。

3. Located on a prehistoric lake bed, which accumulated nutrient-rich sediment, contributing to the fertile topsoil.
   農場建立在史前湖床之上，這裡積聚了富含營養的沉積物，形成了肥沃的表層土。

4. Thus the farmer is helping nature rebuild the topsoil that holds the rain, resists the wind and provides food for growing plants.
   因此，農民是協助大自然重建能夠存蓄雨水、抵抗風力和滋養各種植物的表面土壤。

5. the hollow block is close to the topsoil and has larger contact area with the topsoil, which causes the block not easily shed.
   接近表層土，與表層土體的接觸面積更大，塊體不易脫落；

6. After shoveling out the topsoil, Garfinkel uncovered coins and other artifacts from the time of Alexander the Great.
   在鏟去了表層土以後，加芬克爾發現了來自亞歷山大大帝時期的硬幣和其他人工製品。

7. When digging a hole for planting, one should put topsoil and subsoil in two different sides of the hole.
   挖栽植坑時，應將表土和底土分別放在坑的兩側。

8. Aerodynamics roughness length is one of important indexes for estimating topsoil erosion.
   耕作土壤表面空氣動力學粗糙度是評價土壤可蝕性的重要指標。