1) Cold and drought Region
寒区旱区
2) frigid and arid region
寒旱地区
1.
The topographic condition greatly changes and climate is worst in frigid and arid region, thus vegetation restoration of railway slope is a more complicated project in these regions.
寒旱地区由于地貌高差悬殊,垂直气候差异鲜明,气候恶劣,生态环境极其敏感脆弱,其铁路边坡植被恢复更是一项复杂的工程。
3) frigid and arid mountainous region
寒旱山区
6) cold and arid region
寒区和旱区
补充资料：HⅡ区和HⅠ区
见电离氢区和中性氢区。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条