Experimental study is performed on the mist cooling of heated high temperature surface covered by a sand layer to investigate the effects of both sand size and thickness of sand layer on heat transfer charateristics in order to enhance heat transfer of film boiling region 摘要研究了高温金属面上覆盖砂层后的喷雾冷却换热特性，测试了砂粒颗粒大小和砂层厚度对换热特性的影响。
6 , clustering analyzing method has been used , and guan 3 - 6 sand bed sets have been divided into 5 fluid units quantificationally . the spacing distribution of the fluid units and their controlling function to the residual oil distribution has been descripted 6 、应用聚类分析方法，定量地将南区馆3一6砂层组分为五种流动单元，并描述了各流动单元的空间分布及对剩余油分布的控制作用。
The alternative changes of paleoenvironment favored the formation and imbedding of brine , which is the source of salt - water intrusion ; and the paleochannel that formed during regressive of sea level is the path of salt - water intrusion 海进时期，大面积的滨海平原被淹没，在近海平原洼地滞留的海水经过蒸发、浓缩变为卤水，成为咸水入侵的物源；海退后陆源碎屑在滨海地区沉积形成了巨厚的古河道砂层。
However , there are much silt , silt clay , and silt - and - sand bed in the highway grounds of many provinces and cities . if expressways are built on these grounds without improvement or managed improvement , the quality of roads will fall even destroy 我国许多省市的公路地基中大量存在着淤泥、淤泥质粘土、淤泥混砂层，若不经过处理或处理不当，会引起道路质量的降低甚至破坏，因此，必须加强高速公路软基处理的研究。
Contrast between experimental result and geological research from drilling data of 14 wells shows that the coincidence of sandbody compose and granularity reaches 73 % , that of sand layer thickness distubution 62 % 81 % , and that of sedimentary microfaces distribution 58 % 实验结果与油田地质研究( 14口井资料)对比表明，砂体组成及粒度参数的符合率达73 ，砂层厚度分布的符合率达62 81 ，沉积微相展布的符合率达58 。
By analyzing and calculating the structure and stress distribution status of foundation under time of completion , operating period and earthquake condition , the initial determination on the kinetic strength and liquefied possibility of underlying sand layer beneath the dam foundation are obtained 分析一计算结构及地基在竣工期、运行期和地震作用下变形和应力分布状况，并初步判断闸坝基础卜伏砂层的动弧度及液化的可能性。
In adopting some trenching skills , such as pure grabbing , primary trenching , etc . , gtdw has done a good job in resolving the problem of trenching through the sandy or pebbled stratums of the changjiang river levee , furthermore , the trenching efficiency has been raised greatly 在造孔工序上，薄型抓斗塑性混凝土防渗墙技术采用纯抓和预打导孔等方法，较好地解决了长江堤防地基砂层及砂卵地层的造孔问题，并使造孔工效得到进一步提高。
The original landscape of the site had been changed drastically , and frequent disturbances caused by recent urban development were shown . the trench is now full of pipes and piles . the relics might be deposited in a brownish sandy layer , between the modern disturbed layer and the greyish sand of marine deposit 从出土文物的地点观察，原来的地貌早被近代城市发展所改变，沟内满布水管和桩柱，埋藏文物的层位应是现代扰乱层和灰砂层之间的碣砂层。
The basic uneven settlement problem were controlled well , also the anti - liquefied problem of sand layer nearly was solved in this plan . when increasing the basic gravity after the project completion , the proportional lowering of seepage damage of sand in overburden foundation are greatly improved 基础不均匀沉降问题也能得到较好控制，防砂层液化问题也基本解决，在工程完建后增加基础压重的情况下，覆盖层基础中砂层的渗透破坏坡降也大大提高。
9 . the direction of the sand body distributing , the sedimentary environment , the physical properties of the sand body and the incised action that the fault bring to sand body lying its two sides , are the main factors that effect on the rule of the movement of the oil and water lie in same substrata 储集砂体展布方向、所处的沉积环境、物性以及断层对两侧砂体的切割作用是影响同一小层内油水运动规律的主要因素。 s _ 1砂层组比其它砂层组剩余油相对富集。
