Karst terrain的用法和樣例：
例句
- The rocky desertification in Karst area has become one of the principal factors to restrain environment improvement and social economy development.
喀斯特地區石質荒漠化已成為制約山區生態環境改善和社會經濟發展的重要因素之一。 - The balance method was used to simulate the adsorption reaction of phosphorus in karst soil under the existing of root exudates.
利用平衡法模擬喀斯特地區土壤在有根分泌物存在時的磷吸附反應。
