砂质的

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。

Effected by provenance from the depression northeast and the north, sandstones shaped as semicircle,are distributed in the depression northeast ,and then mudstone and silty argillite as its transition to the southwest. The sequence is classified into two types: alluvial fan-braided river sequence, which was formed by the strong tectonic movement in the lower Jurassic, lake-delta-meander river sequence that generated in the middle and upper Jurassic.

由于受凹陷东北部及北部双向物源的影响，砂岩呈半环状分布于凹陷的东北部，向西南部过渡为泥岩、粉砂质泥岩，研究中把层序结构分两种类型：既早侏罗世强烈构造运动形成的冲积扇-辫状河形的砂泥岩碎屑层序、中晚侏罗世形成的湖泊-三角洲-曲流河形的砂泥岩碎屑层序。

This type is accompanied by the structure-salt dissolution breccias,being vein or flamboyancy in cross section while some of them shot through the lead and zinc ore. In fact,the breccias were lead and zinc orebodies themselves.

其角砾成分单一(主要为沥青质灰岩、晶质灰岩)、大小混杂(nmm～nX10m)、无分选，角砾多呈不规则状和次棱角状或次浑圆状，部分角砾具有可拼性，角砾间为砂质充填或无充填，表明它是一套构造和膏溶共同作用形成的角砾岩。

In this paper, the characteristics of reservoir of reservoir of delta frontal sub-faces of PI Formation in the south of Xingshugang are studied with the data of dense well pattern and rock-mineral identification. The delta frontal sub-faces can be divided into lobate delta frontal sub-faces, branched delta frontal sub- faces and sheeted delta frontal sub-faces. The genetic types of sand bodies in different sedimentary envivonments are analyzed in detail, and the distribution and space-matching relationship of different sand bodies are studied. The micro-pore structure type is studied on the base of the thin section analysis, so the reservoir heterogeneity is studied including plane heterogeneity, interlayer heterogeneity, in-layer heterogeneity and microcosmic characteristic.

利用密井网、岩矿鉴定等资料对杏南地区葡I油层组前缘亚相储层进行研究，将三角洲前缘细分为枝状、朵状、席状3种类型，详细分析了不同沉积环境下砂体的成因类型，描述了不同类型砂体在平面上、空间上的展布特征和组合关系，不同砂体内部性质的差异以及砂体内部微观孔隙结构的类型和分布特征，从平面、层间、层内以及微观特征等方面研究了三角洲前缘储层的非均质性。

The study on spatial distribution of the density of longevous people of Rugao County, Jiangsu Province, shows that the over-90 rate (number of people over 90 years old per 100000 in population) is high in some areas.

对江苏省如皋市长寿人口的空间分布研究表明，如皋市90岁以上长寿人口比率的空间分布具有地域聚集特徵，比率较高的区域分布在北部－东部－东南部发育较强的壤质雏形土和人为土上，在中西部的砂质雏形土和南部弱发育的年轻壤质－粘质雏形土上，比例较低。

The process of the nonexchangeable potassium release from the soil tested in 912 hours can be well described with linear equation.④ The constant B rate of the nonexchangeable potassium release from the soil tested is controlled by the content of clay and slowly available K.

关于非交换钾的释放动力学，Martin等已用几种微酸性砂质土和砂壤质土进行了初步研究［7～10］，国内在此领域研究不多，对中国北方广泛分布的黄土性土壤非交换钾释放动力学研究更少。

Then necessity and feasibility of determining clay content and shale content are studied with different logging response curves.

本文从泥质的基本概念和泥质在测井解释中的具体响应出发，把泥质分为粘土和细粉砂两部分，从而利用不同的测井响应曲线分别研究确定粘土含量和泥质含量的必要性和可行性。

The research results indicate that the qualities of the Jurassic reservoir are dominated by construction. Good reservoirs lie to an advantaged nose protrusion, nearly relating to the distribution of sedimentary micro-facies. The reservoir that lies on the main position in the riverway has better gathering characters. Because argillaceous content is increase and the porosity and permeability became smaller, the character of the reservoir becomes bad in the flood plain area that lies on the skirted riverway and between riverways. Characters of the layer relate to the distribution of main sand-body that the better feature of the layer and the bigger thick of sandbody layer.

通过综合储层含油性、非均质性、分类研究的GIS 分析结果，研究认为：长西油田侏罗系储层性质受构造控制，储集性好的储层在区域上大多属于一个有利的鼻状隆起；且与沉积微相的展布密切相关，在河道主体部位的储层其储集性一般都较好，而在河道侧缘和河道之间的泛滥平原沉积区，泥质含量增加，孔渗性变差，储层的储集性也变差；储层优劣与主砂带的分布也有关，砂层厚度越大，储集性越好。

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。

In view of the current situation that sand is short of supply as well as in poor quality in Beijing, the article analyzes the effects of the main technology index of the machine-made sand on the quality of the ready-mixed pumped concrete.

针对目前北京建筑用砂短缺、质次的现状，本文对机制打砂机的主要技术指标对预拌泵送混凝土的影响进行了试验分析，试验研究了机制打砂机对预拌泵送混凝土的和易性与强度的影响。

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。