砂质的

From serious to weak, the mirofacies are in turn distributary interchannel,levee, far bar distributary river course and debouch bar.

按照非均质性的强弱，这些微相依次为分流间湾、天然堤、远砂坝、水下分流河道和河口砂坝。

The study indicates that the frost heaving character of the meal sand is decimus of silt clays. And its frost heaving quotiety is seldom influenced by the different freezing end temperature and water content. Thus the surroundings influence is in the small area when the artificial freezing method is used in sand and no-stickiness soil.

研究结果表明粉砂冻胀率是淤泥质粘土冻胀率的十分之一，冷端温度、含水量两个因素变化对其冻胀率几乎不产生影响，因此在砂性等无粘性土中应用冻结法对周围环境危害较小。

B using press-volume technique, this paper studied the seasonal changes of water potential at saturated point (Ψ, water potential at turgor loss point (Ψ relative osmotic water content at turgor loss point ROWC(superscript thp, relative water content at turgor loss point RWC(superscript tlp, relative content of apoplastic water, bound water/free water V(subscript a/V, and the difference between (Ψ and (Ψ of Reaurnuria trigyna growing on heavy solonchack, non-salinized soil, and saline soil.

运用压力容积技术，研究了4种盐分生境下长叶红砂饱和含水量时最大渗透势Ψ(上标 sat 下标 s、初始质壁分离时的渗透势Ψ(上标 tlp 下标 s初始质壁分离时渗透水相对含量ROWC(上标 tlp、初始质壁分离时的相对含水量RWC(上标 tlp、质外体水的相对含量、束缚水与自由水的比值V(下标 a/V，以及饱和含水量时最大渗透势与初始质壁分离时的渗透势之差的季节变化。

According to the analysis result,the condition of the Chengbei Sea ground settlement were summarized:1 The stratum of the study area above 30m is Quaternary Holocene deltaic deposit and neritic facies deposit,and the geologic structure is silty soil,muddy-silty clay,silty clay and silt.

根据分析结果，对埕北海域的地面沉降情况进行了总结：1研究区埋深30m以浅地层为第四纪全新世三角洲沉积和浅海相沉积地层，其结构是粉土、淤泥质粉质粘土、粉质粘土和粉砂。

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。

According to the analysis of features of the key outcrop sequence stratigraphy, build the sequence frame, through the section comparison, and the study of feature of the 5 key outcrops, then it can be concluded that, conglomerate on the denudation plane or the other contrastive sediment are the main features surrounding the bottom border of the sequence. In the foreland basin sediment environment, the transilient group of mud rock and sandstone are the main sediment features of low-stand system tract. Thick mud rock and sandstone interbedded is the chief component of transgressive system tract, sometimes together with thick turbidity current sandstone; High-stand system tract is composed by the combination of mud rock and sandstone interbedded, with the progradation as its main style. Maximum flooding surface Sediment are usually mudstone, and the thickness is different from each other.

依据关键露头剖面高精度层序特征分析，通过剖面对比建立高精度等时层序地层格架，通过对5条关键露头剖面的详细高精度层序特征分析，认识到：剥蚀面上的粗碎屑岩或与之可区域对比的其它沉积是层序底部边界附近的主要沉积特征；在盆地沉积环境中，砂泥岩发育，厚层、块状砂岩与泥质岩类的突变组合是低位体系域的主要沉积特征；湖进体系域以厚层泥岩夹砂岩为主，有时夹厚度较大的重力流砂体；高位体系域为砂泥互层沉积组合，以进积式叠加样式为主；最大湖泛面多为泥岩，但其厚薄不一。

The paper introduced serious sand production actuality of the quaternary gas reservoir located in Sebei Gas Field,which consists of unconsolidated fine siltstone formations with high content of shale.

介绍了涩北气田第四系高泥质疏松粉细砂岩气藏的出砂现状，通过多年的室内基础理论研究和现场防砂先导性试验成果总结，形成了适合涩北气田的高压一次充填防砂工艺。

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，本文对机制砂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，试验研究了机制砂对预拌泵送混凝土的和易性与强度的影响。

Development of new process technologies can be of interest from manufacturing cost point of view. The current study assesses the feasibility of using green sand mold to cast AZ91 magnesium alloy.

本研究尝试以湿砂模法浇铸AZ91镁合金，由於湿模砂中含有水气，是必须添加抑制剂避免浇铸过程中，镁合金熔汤与湿模砂的水气反应产生氧化镁渣质及氢气。

Upstream has formed an annual output of 300,000 tons has a high-quality silicon mines, when the glass holding company Silicon Mine Ichang limited liability company is a large production base of raw materials of silica, there are two domestic beneficiation of silica sand advanced production lines, annual output of fine quartz sand 300000 t / a, is South Africa's largest silica sand base; mid-stream has a 450t / d, 500t / d float glass production lines and 600 / t self-cleaning glass substrate production line of the article, an annual output of float glass production capacity of 10 million weight boxes; downstream has a glass cover, TiO2 thin-film self-cleaning glass, tempered glass, insulating glass, such as a number of glass deep-processing production lines, processing 3 million square meters of glass products.

上游已形成拥有年产30万吨的优质硅矿，控股公司宜昌当玻硅矿有限责任公司是大型硅质原料生产基地，建有2条国内先进的硅砂选矿生产线，年产石英精砂30万t/a，属中南地区最大的硅砂基地；中游拥有450t/d、500t/d浮法玻璃生产线和600/t自洁玻璃基片生产线各一条，年产浮法玻璃1000万重量箱生产能力；下游拥有强化玻璃盖、TiO2薄膜自洁玻璃、钢化玻璃、中空玻璃等多条玻璃深加工生产线，年加工玻璃制品300万平方米。

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。