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- They were engaged in the study of soil conservation. 他们在从事土壤保持的研究。
- The spatial distribution characteristics and eco-economic value of soil conservation service of ecosystems in Hainan Island by GIS 海南岛生态系统土壤保持空间分布特征及生态经济价值评估
- The spatial distribution characteristics and eco economic value of soil conservation service of ecosystems in Hainan Island by GIS 海南岛生态系统土壤保持空间分布特征及生态经济价值评估
- service of soil conservation 土壤保持功能
- One important form of soil conservation is the use of windbreaks. 土壤保护最重要的一种方式就是使用防风林。
- One important fall form of soil conservation is the used of windbreaks. 一种保护土地很重要的方式是利用防护林。
- Problems of soil conservation and shoreland development are not likelyto quickly disappear. 土壤保持和滨海地开发问题也不可能很快消失。
- Problems of soil conservation and shoreland development are not likely to quickly disappear. 土壤保持和滨海地开发问题也不可能很快消失。
- Effect of soil conservation forest depends on land surface cover of dead leave and soil condition. 水土保持林的效益主要取决于林地枯落物和林地土壤状况。
- Problems of soil conservation and shoreland development are not likelyto quickly disappear . 土壤保持和滨海地开发问题也不可能很快消失。
- He died in the service of his country. 他为国捐躯。
- Ecosystem health is the aim of soil conservation and ecosystem rehabilitation on the Loess Plateau. 摘要生态经济系统健康是黄土高原水土保持与生态建设的目标。
- Contour hedgerow was introduced to Zigui County as a means of soil conservation in the early 1990s. 摘要早在1990年代初，湖北省株归县政府和技术人员已着手研究如何在坡耕地上使用等高植物篱以解决水土流失的问题。
- The period of service of a minister. 牧师任期充当牧师的时限
- You can get more information about windbreaks and other forms of soil conservation from the group Volunteers in Technical Assistance. 你可以从技术援助志愿者组织（vita）得到更多关于防护林和其他土壤保持方法的信息。
- Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature. 农民们使用不同的土壤保护方法保护他们的土地不受农作和自然力量的伤害.
- His new overlord demanded the service of one of his sons. 他的新领主要求他的一个儿子为他服务。
- They are researched a little on part of soil conservation action, soil moisture, soil nutrient, and the underground portion of intercrop. 提出间套作在栽培措施方面应注意的关键问题：合理安排间套作作物的播种期和移栽期；
- There are some clods of soil on the mat. 垫子上有些土块。
- You may need the services of a lawyer. 你也许需要律师的帮助。
