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- Generally, the chemical or physical action of these materials with sand will make loose sand stick each other and form a protective layer for windbreak and sand fixation. 一般是通过与沙粒发生化学或物理化学作用等,使松散的沙粒粘结成整体,形成保护层而达到防风固沙,治理沙害的不同效果。
- windbreak and sand fixation forestry robot 防风固沙机器人
- windbreak and sand fixation forestry system 防风固沙体系
- Construction of the Windbreak and Sand Fixation Forestry System at the Edge of Oasis in the Lower Reaches of the Shiyang River 石羊河下游防风固沙体系建设模式
- Windbreak and sand fixation 防风固沙
- With respect to protective forests such as those for water supply conservation, water and soil conservation, windbreak and sand -- fixation, felling shall only be permitted for tending and regeneration of forests. 对水源涵养林、水土保持林、防风固沙林等防护林只准进行抚育和更新性质的采伐。
- With respect to protective forests such as those for water supply conservation,water and soil conservation,windbreak and sand -- fixation,felling shall only be permitted for tending and regeneration of forests. 对水源涵养林、水土保持林、防风固沙林等防护林只准进行抚育和更新性质的采伐。
- The public welfare biological assets refer to the biological assets for the main purpose of protection or environmental protection, consisting of wind break and sand fixation forests, water and soil conservation forests, water conservation forests, etc. 公益性生物资产,是指以防护、环境保护为主要目的的生物资产,包括防风固沙林、水土保持林和水源涵养林等。
- wind prevention and sand fixation 防风固沙
- plantation for wind protection and sand fixation 防风固沙林
- Capparis Spinosa L is a good material for windbreak and fixation sand in despite of simple community structure. 虽然刺山柑的群落结果比较简单。但它是一种比较优良的防风固沙植物。
- They serve as windbreak, serve for sand fixation and provide fodder and shelter for wild and domestic animals. 生态作用是治风速、固定风沙、给野生动物与畜牧提供饲料与保护。
- They had to contend with wind and sand storms. 他们必须与大风沙作斗争。
- The earth and sand swallowed up the house. 泥土与砂石吞没了那些房屋。
- Parcel was full of stones and sand! 装的全是石头和沙子。
- Dalian Heshun Emery Cloth and Sand Paper Co., Ltd. 大连禾顺砂布纸有限公司。
- Time is water and has gold left and sand drift. 时间是水,淘金流沙。
- Fine cloth, charcoal, and sand are used as filters. 细布、木炭和沙用来作过滤材料。
- The flood scoured away mud and sand . 洪水冲走了泥沙。
- The flood scoured away mud and sand. 洪水冲走了泥沙。