砂质

But current research work is mainly based on the sandstones microscopic anisotropism and the macroscopic anisotropism.

而当前对砂体的研究工作主要集中在对砂体的微观非均质性和宏观非均质性的研究上。

The result indicated that suitable thickness of paddy soil is about 15cm,and for dry arable land it should not be lower than 20cm;The alluvial rivers parent material is the best one to influent the output,the rice fields is the worst with the parent material of slate ground,while the dry and plough land is the worst for its purple sand shale parent material;The paddy rice is best with the acid soil,and the dry crop is the best with the neutral soil;The obstacles horizon exist in 35.2%of the rice fields in research region,and many for middle or top digit obstacles.

结果表明，水稻土的适宜耕层厚度为15 cm左右，旱耕地适宜耕层厚度应不低于20cm；成土母质对产量的影响以河湖沉积物母质最好，稻田以板页岩母质最差，旱耕地以紫色砂页岩母质最差；水稻以酸性土最好，旱作以中性土最好；研究区稻田有35.2%的存在障碍层，且多为中、高位障碍，是影响水稻产量整体提高的主要因素；水稻和旱作都以壤土为最好，其中，稻作怕砂，旱作怕粘；水稻土适宜的容重为1.00—1.29 g/cm~3。

And after analyzing the heterogeneity of sand body, point the minor channels, especially, have important influence on the intraformational oil-flooding direction, forming and distribution of remaining oil because of their function as barrier, breaking fluid and poor permeability in fluvial sand body.

通过非均质性研究，进一步揭示了单一河道砂体内部非均质性，特别是次分流河道砂体的分布，在河道砂体内起到遮挡、阻流、特低渗透等作用，对层内水驱油方向、剩余油形成与分布具有重要影响。

The medium-grained sandstones and medium-fine-grained sandstones form good reservoirs and the poststones medium reservoirs, while siltstones form poor reservoirs and pelitic siltstones poorest reservoirs. Sand bodies mostly develop in sand-flats, tidal channels and distributary channels of braided stream delta microfacies. The reservoir rocks of sand-flat and tidal channel are best with the physical property. Diagenesis such as compaction, cementation and dissolution has strongly reformed the reservoir rocks and the late dissolution has greatly improved their porosity and permeability.

中粒砂岩、中细粒砂岩属好储层，细粒砂岩属中等储层，粉细砂岩，粉砂岩属较差储层，而泥质粉砂岩则属差储层；砂坪、潮道和辫状河三角洲分流河道微相中的砂体最发育，它们决定了储集岩的发育、分布及原始物性条件；砂坪和潮道储集岩的物性最好，辫状河三角洲分流河道储集岩的物性次之，砂泥混合坪、辫状河三角洲分流河道间储集岩的物性较差；成岩作用对本区CⅠ油组的储层有强烈的改造作用，尤其是较晚期的溶蚀作用对岩石的储集性能有明显的改善，对本区CⅠ油组中孔高渗透储层的形成有很大的贡献。

An experiment on artificial soils consisting of peat , sand and cooking coal ash suggests that the optimum ratio of peat and sand lor best growth and fertilizer efficiency is 75:25 or 50:50 in volume for Chrysanthemum and Tagetes erecta .

用泥炭、河砂和煤渣分别组成花卉营养土的试验表明，泥炭与河砂以75∶25或50∶50容积比例组成的基质对黄菊和万寿菊的效果最好，肥料效率也最高，煤渣的效果明显低于河砂；从组分的细度看，河砂以粒径2—0.15mm最好，煤渣在使用前除去过细部分会大大提高其利用价值。

Aimed at the complexity of fluvial strata, such measures as well cyclical comparison, step control and geological analysis of reference beds have been applied. Moreover the paper has developed a set of methods the techniques to extract the parameters controlling the formation of intra-sandbody thin interbeds. The present study has examined how thin interbeds affect the frame property and heterogeneity of individual sandbodies; revealed the permeability space distribution mode of meandering distributary channel's single side lithosomic body and straight distributary channel's aggrading lithosomic body. Through applying the distributary channel sandbody structural unit classifying and identifying method achievement, some horizontal wells have been deployed to dig the residual oil in the top of hick pay zone in the xing8-9 area, which shows better effect after they have been put into production.

针对分流河流砂体沉积特点采用了旋回对比、分级控制、不同相带区别对待的单油层对比方法；利用取心井、对子井等资料研究形成了分流河道砂体内部结构单元的倾角、倾向、规模等参数的提取方法；搞清了内部结构单元对单一砂体内非均质性的控制作用，建立了分流平原相单一点坝侧积体及顺直型分流河道单一加积体层内渗透率分布模式及剩余油分布模式，应用分流河道砂体结构单元划分方法识别研究成果，在杏树岗油田杏八九区纯油区部署了水平井，投产后见到了较好的厚油层顶部剩余油挖潜效果。

The sand bodies of the inner delta front are from under water distributary channels and under water crevasse splays, the former is good at the physical property and has a good single pass connectivity, and the latter has a high independence and can form a suit of fake- connected sand body.

内前缘主要发育水下分流河道和水下决口扇砂体，前者物性好、单向连通性好，后者单期独立性强，多期叠置后可形成砂体连片假象；外前缘砂体连片性非常强，但是砂体内部发育大量水平或近水平泥质薄层，储层的垂向非均质性较强。

Lightweight fills of sand-EPS beads were formed by blending sands with EPS beads in proportions. They could be used as lightweight geomaterials/fills suitable for various infrastructures, e.g., embankments, backfills and replacing materials. To study their deformation and shear strength behavior could help understand their mechanical properties and determine the ground deformation and stability in the fields.

砂－聚苯乙烯颗粒轻质填料是由工程标准砂和超轻质聚苯乙烯颗粒按一定质量配比均匀混合而成的土工合成材料，研究其变形和剪切强度特性是掌握其工程力学特性的重要内容，也是解决实际工程中变形和稳定的重要依据。

Since 2002, the company has developed various types of more than 20 kind of the dry and wet type of sandblast machine altogether (aluminium quality, copper, iron, gather urethane sandblast machine), more than 100 kind of nuzzle (including in wolfram steel, carbonization boron, carborundum, compound pottery and steel nuzzle), and other many kinds of sandblasting machine fittings, the great one has met lots of sandblast machine factory and sandblast sales departments to many kinds of demands for sandblast machine.

从2002年开始，公司共开发了二十几种各式干湿型喷砂枪（铝质，铜质，铁质，不锈钢，聚氨酯喷砂枪），一百多种各规格喷咀（钨钢，碳化硼，碳化矽，复合陶瓷及钢质喷咀）以及其他多种喷砂机配件，极大的满足了各喷砂机械厂及喷砂销售部对多种喷砂配件的需求。

Domestic companies to introduce advanced production equipment, production and processing dried Mica Powder, Mica Powder wet system, ordinary quartz sand, semi-refined quartz sand, fine quartz sand, high purity quartz sand, limestone, calcium carbonate, precipitated calcium carbonate, dolomite powder , vermiculite powder, feldspar powder, maifanite, tourmaline, bauxite, sand, pebbles, sand, building sand and other non-metallic mineral products can be customized according to user needs processing.

公司引进国内先进生产设备生产加工干制云母粉、湿制云母粉，普通石英砂、半精制石英砂、精制石英砂、高纯石英砂，石灰石、重质碳酸钙、轻质碳酸钙，白云石粉，蛭石粉，钾长石粉，麦饭石，电气石、铝矾土，彩砂，鹅卵石，河砂、建筑砂等非金属矿产品，可根据用户需要定做加工。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。