自然环境

Pedology and aerography may help students to understand the environments where plant growth.

土壤学和气象学对了解植物生长自然环境有帮助。

The paper analyzes the causes of seepage of asphalt felt roofage and puts forward the repairing ways on partial damage of waterproof roofage.

传统使青油毡屋面目前仍量存在,由于受自然环境长期侵蚀及其它素影响,防水层经发生局部损坏而造成渗漏。

Underground coal gasification is implemented under changefully natural environment which is difficult and complicated to execute,so scientific safety preventive measures should be adopted.

煤炭地下气化是在多变自然环境中进行,操作复杂,难度,此,必须采取科学安全措施。