进而分析其原因，提出了保护土地资源、优化土地环境的对策。

And then, analysed its causes and proposed the countermeasures to protect land re - sources and optimize land environment.

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墙体材料革新是保护土地资源，节约能源，资源综合利用，改善环境的重要措施。

Innovating wall materials offers the important measures for protecting land resources, saving energy, utilizing resources comprehensively and improving environment.

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本文论述了土地资源与人类的密切关系。同时指出目前我国土地利用欠合理化；提出了保护土地资源的措施。

This paper expounds the close relation between land resources and mankind, points out the irrational use of our country's land at present, and puts forward measures to protect land resources.

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It's great because there's huge expectation that we are gonna bring this agency back, that we are gonna restore EPA with places, the protector of air, water and land.

这么做很好，因为人们期待着,环境保护署重新回到视线当中，期待环境保护署能够重新，发挥对大气，水以及土地资源保护作用。

普林斯顿公开课 - 领导能力简介课程节选