查询词典 sand paper

Sand map for military purpose is established to redisplay actual terrain according to paper map, it is a micro-model for 3D-terrain which can present battlefield situation all moments. Contrast to practicality model, visualization of 3D-terrain becomes an emphasis and difficulty in the field of GIS and military simulation.

军事用途的沙盘模型是根据地图信息，以实物模型来还原实际地形地貌，显示各个阶段战场态势的微缩三维地形模型，数字地图三维可视化是GIS和军事仿真领域的一个重要的研究课题。

The paper introduces improvements on method for relative density of sand experiments.

改进了砂相对密度的试验方法。

This paper introduces briefly the sand processing history by both rod mill and vertical axis impact crusher.

立轴冲击式破碎机和棒磨机制砂各自有其固有的优势和弊端，两种机型优化组合后的联合制砂工艺已被大型和特大型水电站工程的施工广泛应用。

In the belt grinding for cam a method of by adding medial mechanism to avoid direct contacting of conjugate cam and sand belt so as to prolong conjugate cam's life is put forward in this paper which can solve the problem that conjugate cam is easy to wear.

根据凸轮砂带磨削技术中共轭轮易磨损的情况，提出了一种增加中间摆动机构，避免共轭轮与砂带直接接触，从而增加共轭轮工作寿命的方法，并给出了该机构共轭轮廓形计算的方法。

On the basis of the structure,the shapes of abrasive grain and sanding characte-ristics of the sand belt ,this paper brings out the principle of prolonging sandbelt working life by"bidirctional sanding"and the possibility of practising theprinciple.

在理论上对砂带的结构、磨粒形状、磨削特点等方面进行分析，从使用方法这一角度，提出了"砂带双向磨削"这一新概念，阐明了该方法延长砂带使用寿命的原理以及在实际生产中应用的可能性。

Paper Machine Casting achieve all resin sand casting, casting an annual output capacity of 20,000 tons.

实现造纸机铸件全部树脂砂铸造，年产铸件能力20000吨。

This paper expounds the conception of the compactness, introduces some methods for detecting the field compactness such as the sand cone method, the cutting ring method, the nuclear magnetometer method, and the core-drilling method , etc.

阐述了压实度的概念，介绍了灌砂法、环刀法、核子仪法、钻芯法等现场压实度的检测方法，指明了各种检测方法适用范围、注意事项，为施工现场压实度的有效控制提供了借鉴。

The formation of dry surface layer and its effect on characteristics of evaporation of sand dune and the evapotranspiration of grassland in the Mu Us desert are discussed in this paper.

本文针对毛乌素沙地水资源的高效利用问题，主要探讨了干沙层的形成及其对土壤水分蒸发特性的影响以及草地的蒸散量。

This paper presented the influence of water∶cement ratio,fly ash,sand ratio,the pre-wetting time of lightweight aggregate on the mechanical properties of high strength lightweight concrete.

研究了水胶比、粉煤灰掺量、砂率和陶粒预湿时间对高强轻集料混凝土力学性能的影响。

In this paper, mechanical properties of the sandy silt and fine sand mixed with cement and fly ashes in different amounts after different ages curing are researched, and the effect of cementing is compared. Through pull-out tests and direct shearing tests of geogrid in various soil, the interface characteristics of between geogrid and soil are measured.

本文通过室内物性试验、直剪试验和单轴压缩试验研究了采用不同掺量的水泥、粉煤灰加固后的砂质粉土和粉细砂养护不同龄期后的物理力学特性，并对加固效果进行了比较。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。