soil climatic zone

基本解释

Because of unique climatic condition and geological condition in perennially frozen soil zone, structural design of asphalt pavement in this area has its particularity.
多年凍土地區獨特的氣候條件和地質條件決定了該地區瀝青路麪結搆設計的特殊性。
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As a result of in arid, semi-arid climatic zone, soil erosion and sediment deposition in Iran are very serious and have become one of main problems influencing national development.
伊朗地処乾旱、半乾旱氣候帶，土壤侵蝕嚴重，河流泥沙問題突出，已成爲影響該國經濟社會發展的主要環境問題之一。