砂的

For a 1116Kg chromitite and a 384Kg mantle peridotite sample, by heavy mineral separation and picking up under a binocular microscope following productions are obtained: the UHP minerals including moissanite and over 1000 diamond grains are discovered firstly from the Kangjinla chromitite orebody Cr-11, which is far more abundant than the Luobusa district; a series of unusual mantle minerals like moissanite and a great deal of diamond grains are discovered firstly from the host rocks of chromitite orebody Cr-11, providing the foundation of discussing the chromitite origin and its relation with the host rocks; besides the UHP minerals like moissanite and diamond, various special mantle minerals are revealed from the chromitite orebody Cr-11 and its host rocks including some native elements, alloys, oxides, sulphides, silicates, carbonates, and tungstates.

2人工重砂发现铬铁矿和地幔橄榄岩中的金刚石等特殊地幔矿物。1116 Kg铬铁矿和384Kg地幔橄榄岩大样经人工重砂分选和双目显微镜下挑选矿物，取得如下成果：首次在康金拉11号铬铁矿体中发现了上千粒金刚石，以及碳硅石等强还原环境的超高压矿物，数量远远超过在罗布莎铬铁矿矿区中发现的金刚石；首次在康金拉11号铬铁矿矿体的近矿围岩中发现了大量金刚石和碳硅石等一批异常地幔矿物，为探讨铬铁矿的成因及与近矿围岩地幔橄榄岩的关系奠定了基础；除挑选出金刚石和碳硅石等超高压矿物，在康金拉11号铬铁矿矿体与围岩地幔橄榄岩中还发现了自然铁球、金属互化物、氧化物、硫化物、硅酸盐等一批异常地幔矿物。

The results of the investigation showed that the best entrance angle of B〓C, B〓C/ C and Al〓O〓/ C ceramic nozzles is 11°, 14°and 16°respectively. Erosion wear model has been put forward. The B〓C and B〓C/ C nozzles exhibited a stress fatigue induced removal process under the condition of umber emery erodent impacting, and a brittle fracture induced removal process under the condition of white emery and SiC erodent impacting.

建立了不同磨损机理下的冲蚀磨损模型，提出了喷砂嘴的磨损属于多冲蚀机理并存的复合冲蚀机制。B〓C和B〓C/C陶瓷喷砂嘴在棕刚玉磨料的冲蚀下，主要表现为应力疲劳断裂冲蚀，在白刚玉和SiC磨料的冲蚀下，主要表现为脆性断裂冲蚀。

The fundamental force for oil accumulation in the lentoid sand reservoir is the difference of capillary pressures built up between the source rock and the reservoir.

在这类砂岩油藏成藏的过程中，砂体的油相压力要低于与其相邻的围岩中的油相压力，使得砂体成为石油的一个相对的低势区。

U.S. liquid and dry sand blasting sandblasting series will meet each user's different needs, for special products of production and technological requirements, we can design and manufacture a variety of specialized equipment to ensure that users receive the economic, efficient and satisfactory Products.

我们的液体喷砂和干式喷砂系列产品将满足每一个用户的不同的需求，对于特殊产品的生产和工艺要求，我们可以设计制造各种专用设备，以保证用户获得经济、高效、满意的产品。

The result showed that the spatial variability of the soil bulkinthis area was complicated and there was not a certain variation.The soil bulk density of loamy soil was(1.55±0.09)g/cm3,the soil bulk density of sandy soil was(1.43±0.16)g/cm3 and the soil bulk density of clayey soil was(1.54±0.07)g/cm3.The soil bulk density of the cross-bedding soil composed by sandy soil and clayey soil was(1.47±0.12)g/cm3.The soil showed a tendencyto be compacted.

结果显示，研究区域土壤容重的空间变异情况复杂，无确定的变化规律；壤质类土壤的容重值为(1.55±0.09)g/cm3，砂质类土壤的容重值为(1.43±0.16)g/cm3，粘质类土壤的容重值为(1.54±0.07)g/cm3，粘砂交错层的土壤容重值为(1.47±0.12)g/cm3，土壤呈紧实趋势。

In this paper, on full automatic production condition, parameters of on-line sand testing system and double-disk cooler were optimized, and moulding-sand parameters of clay content, permeability, compactibility, and so on, were adjusted and optimized, and moulding-sand property parameters' control on full automatic production condition was also involved. The results can supply some reference for other similar production.

本文着重介绍了全自动生产条件下在线型砂性能检测控制仪、双盘冷却器控制参数的优化，结合生产铸件对型砂性能的实际要求，对型砂含泥量、透气性、紧实率等参数进行的调整和优化，以及全自动生产条件下砂处理工艺参数的控制范围和控制方法，本文可为相似生产条件下砂处理系统的调试和型砂性能控制提供一些参考。

The area outside the microprism is the matte screen. Focusing is done by sight and requires practice as the transition from unsharp to sharp is gradual rather than abrupt . The matte screen helps you focus precisely with range.

微棱镜以外的区域是磨砂屏，对焦的过程是通过观察同时需要经验，因为景物被观察时从不清晰到清晰的变化是逐渐产生的而非突然出现的，磨砂屏能帮助您对远处和极近处景物精心准确对焦。

This paper outlines the basic principles,processes and equipments commonly used in V-process ,green sand and resin sand moldings.

文章介绍了目前常用的真空 V法造型、湿砂造型和树脂砂造型的基本原理、工艺过程以及所使用的设备，列举了它们的优缺点和经济的适用范围。

Quartz sand is one of the most widely used non-metallic materials, it will be very important practical significance to the development of the national economy to enhance the sorting of raw materials of quartz sand and improve its purity quotient.

石英砂是目前应用最广泛的非金属原料之一，加强对石英砂原料的分选、提高石英产品的纯度，对国民经济的发展具有重要的现实意义。

In the Neolithic period the "magnetic mountain culture" period, Fengfeng beautiful places have been able to produce the pottery, the earliest production of terracotta sand, sharp sand brown pottery, terracotta clay objects, such as bowls, bowls, plates, pots , cans, beans, cup, such as four-legged tripod, since there are more than 7000 years of history, as the birthplace of our country one of the oldest pottery.

在新石器时代的&磁山文化&时期，峰峰地方已经能够生产优美的陶器，最早制作的有砂红陶、尖砂褐陶、泥质红陶的器物，如碗、钵、盘、壶、罐、豆、盂、四足鼎等，距今已有七千余年的历史，为我国古老陶器的发祥地之一。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。