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- sand fixation by crust 固沙结皮
- SH can be used for sand dune fixation.The references may guide the field practice in sand fixation by SH in future. 试验结果表明,SH可以固沙,固沙后抗风蚀能力强,研究结果为指导现场施工提供了依据。
- Report of Crust Sand Fixation by Alga 荒漠藻固沙结皮试验研究初报
- This paper describes the mechanism of sand fixations by grouting engineering and biological engineering. 摘要对溜砂坡中注浆工程固砂和生物工程固砂力学机理进行了阐述。
- Strength characteristics of sand fixated by SH[J].Chinese Journal of Rock Mechanics and Engineering, 2003,22(Supp.2): 2 883-2 887. SH固化沙体的强度特征[J].;岩石力学与工程学报;2003;22(增2):2 883-2 887
- Characteristics of Symbiotic Nitrogen Fixation by Sesbania cannabina. 普通田菁的共生固氮特性
- In compacted and waterlogged soils ??fixation by nodules is probably limited by availability of ?? 在坚实的和渍水的土壤中,根瘤固氮大概受?璧目筛?性限制。
- 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。
- N2 fixation by nodules attached to soybean roots in soil is not limited by availability of ?? 土壤中?乇淮蠖垢?瘤的固定,不受N2的可给性限制。
- It can also be used to the fields such as water and soil conservation,sand fixation of desert,surface fixation of bulk material stockpile. 该研究的成果也可以用于农林业水土保护、荒原沙漠稳土固沙及各种散堆物料面层固结等其它领域,具有广泛的应用前景。
- Chemical sand fixation is an important method of desertification control due to its low cost,efficiency and suppleness,for which polymer is the main material. 化学固沙技术是荒漠化治理的一种重要途径,其优点是成本低,施工简便,见效快。高分子材料是化学固沙的主要原料。
- 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。
- Methods 15 patients with tibial fracture received internal fixation by absorbable intramedullary pin were analyzed retrospectively. 方法对15例胫骨骨折病人应用可吸收髓内针固定进行回顾性分析。
- Control group was fixated by traditional PLIF technique. 对照组用传统的PLIF法固定。
- The elementary principles and methods of carbon dioxide fixation by coordination and insertion reactions of transition metal complexes catalysis are reviewed. 摘要综述了利用过渡金属配合物和二氧化碳的配位及插入反应实现二氧化碳固定的基本方法、原理及其研究现状。
- 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。
- Eco-geographical flora of pathogeny was discussed, and divided in to 3 forestation areas, such as sand forest center arboretum, 106 sand fixation areas and Wuhai sand-fixation forest. 讨论了病原物的生态地理区系,并分为沙林中心植物园、106治沙工区、乌海治沙林场3个固沙造林区。
- He persuaded her to sign the document by guile. 他用欺骗手段说服她在文件上签字。
- British colonies were ruled by governors. 英国的殖民地由总督统治。
- The army was demoralized by defeat. 军队因战败而士气消沉。