| 1. | In 1908, president roosevelt called a conference of state governors to discuss various conservation problems .
一九八年，罗斯福总统召集了州长会议讨论各种资源保护问题。 |
| 2. | Conservationists had to carry on a constant struggle against lumber companies, ranchers, and homesteader .
而资源保护学家们不得不和木材公司、牧场主以及分得土地的移民进行不断的斗争。 |
| 3. | During the presidency of theodore roosevelt from 1901 to 1909, conservation was an important domestic policy .
1901年至1909年西奥多罗斯福任总统期间，资源保护是国内的一项重要政策。 |
| 4. | It was the civilian conservation corps(ccc), authorized by congress in late march 1933 and put into operation on april 5 .
这就是民间资源保护队。1933年3月后期，由国会批准，4月5日开始行动。 |
| 5. | Bear breeding and conservation of its resource in china
中国熊养殖及其资源保护 |
| 6. | Science of environment and natural resources protection law
环境与资源保护法学 |
| 7. | Environmental resources protection in west development
西部大开发中的环境资源保护 |
| 8. | Western area soil resource protection policy xie du
西部地区土地资源保护政策的解读 |
| 9. | Protection of water resources - allowance of no delay
加强水资源保护刻不容缓 |
| 10. | Study on the protection of tourism resources in gansu province
甘肃省旅游资源保护研究 |
