沟的

In the end we confirms its main functions, which is discharging the folium water on the tidal flat of the Tidal-Basin in the end of the ebb-tide, transporting sediment to Tidal-Basin through tidal creek systems, confining the swing range of the dynamical axis of flood tide or ebb tide, balancing the dynamical status of the South and North.

通过对比分析1973年—2000年的卫片，总结了条子泥沙洲主要潮盆-潮沟系统的近期动态变化特征；并对潮沟系统的历年变化状况进行了对比分析，亦发现了潮沟系统的主要运动特点。

2The anterior cutereous branches of the obturator artery penetrate deepfascia of thigh and epimysium of the adductor muscles closing against the lower rami of pubisor at its outer margin.Pudendal-thigh skin flap pedicled on it may be elevated to repairrectovaginal fistula or small skin defects of perineum.As its piercing point is much higher andthe location of pedicle is more fixed because of restriction of pubic rami,it is not suited toreconstruct new vagina.Moreover,it is not appropriate naming the obturator aretry(or themedial femoral circumflex artery)the pudendal-thigh artery.

闭孔动脉前皮支紧邻耻骨下支或于其外侧缘，穿大腿深筋膜和内收肌肌膜浅出，以之为蒂可以形成皮下蒂阴股沟岛状皮瓣，用于阴道直肠瘘或会阴部较小皮肤缺损的修复，但由于闭孔动静脉前皮支浅出点位置较高，并且由于耻骨下支的阻挡和限制，致使血管蒂的位置较为固定，以之为蒂形成的阴股沟皮瓣不适宜用于阴道再造；另外，将闭孔动脉命名为阴股沟动脉，也有欠妥帖。

On the basis of freeboard phenomenon in curve way and the improvement of curve flow velocity, this paper gets a useful calculating method of bed roughness.

这些公式均涉及到沟床糙率的计算。关于泥石流沟床糙率的研究，主要根据水力学上的研究，再加以变化而来。目前，在水力学中沟床糙率的计算方法主要有水力学方法、查表粗估法、糙率公式计算法[2]。

In Late Jurassic period (159-135Ma), when the orientation of maximum principal compressive stress was NW direction, the Wuzhangshan granite intruded to upward, accompanied the formation of NW trending Sanrenchang and Huangshuian breccia pipe belts; In the Early Cretaceous period (135-120Ma), when the orientation of maximum principal compressive stress was NNW trending, the second stage of Huashan granite intruded to upward, accompanied the formation of NW trending Qiyugou breccia pipe belts; In 120-105 Ma, when the orientation of maximum principal compressive stress changed to NE direction, the gold-bearing quartz veins and gold orebodies in breccia pipes were formed along the NE trending fractures; In the Middle Cretaceous period (105-85 Ma), when the orientation of maximum principal compressive stress was NEE, the NEE trending Leimengou granite porphyry intruded to upward, accompanied the formation of NEE trending Leimengou breccia pipe belts.

在晚侏罗世(159～135Ma)，构造应力场最大压应力方向为NW向，形成了NW走向的五丈山岩体以及NW向展布三人场、黄水庵两个角砾岩带；在白垩纪早期(135～120Ma)，最大压应力为NNW向，形成了花山岩体第二期上侵，并伴有NW向的祁雨沟角砾岩带；其后(120～100Ma)，构造应力场最大压应力方向变为NE向，形成了NE向含金石英脉及角砾岩体中金矿体；最后(100～80Ma)，形成了雷门沟花岗斑岩以及NEE向展布的雷门沟-杨河沟角砾岩带(区域构造应力场的最大主压应力方向为NEE向)。

According to the transnational periodically symmetry of crystal plane in its space,the author introduce the Thomas-Fermi equation in crystal planar channeling electric fields;then calculate the electric fields of single crystal Si(110)and its critical angle.

根据同一晶向的晶面具有平移周期对称性，将托马斯费米方程引入晶体的平面沟道中求解Si(110 )平面沟道内的电场；然后把求得的结果用于计算平面沟道临界角。

In the paper, we mostly studied the change of soil erosion process by a new REE tracer method, based on the theories of hydraulic mechanical subject and radionuclear tracer method, and simulated rainfall was applied to study the sheet erosion changing to rill erosion and the rill erosion process on slope land. The new REE tracer method should be useful to future studying of erosion processes on slope lands.1. Offering and testifying a new REE displacing method to study on the soil erosion of the loess slope.

本文以黄土坡面土壤侵蚀形态演变规律为研究重点，以新的核素示踪技术为手段，采用水动力学与核素示踪技术相结合、室内人工模拟降雨与稳定性REE元素示踪相结合的方法，利用先进的INAA技术，定量研究了不同雨强次降雨条件下细沟间侵蚀向细沟侵蚀的转变过程、细沟发生发育过程，为深入了解坡面侵蚀过程，建立黄土高原土壤侵蚀预报模型提供了研究基础。

These samples provided us widi data on the ability of the soil to adequately supply the crop with needed nutrients for normal plant growth and the nutritional status of the peai trees themselves.

而 P、K的含量，厢面为 253 ms Ks'、314 ms Ks'，厢沟为143 ms K合'、168 ms K合'。七月份的样品分析结果呈现相似的变化。N的含量厢面、厢沟分别为 903 mg Kg叫、730 mg Kg叫。P和 K的含量厢面、厢沟分别为185 mg Kg'、306 mg Kg'和 122 mg Kg－'、295 mg Ks－'。

Precentral gyri thickness more big postcentral gyri in 93 cases.The mean ratio of percentral/postcentral gyri was 1.736 for left hemisphere and 1.652 for right hemisphere.The superior frontal sulci with precentral sulci intersect in 80 cases.At 31 with brain lesion's patients,MR findings with clinical symptom had same location in the brain gyri.

结果 明确判定中央沟位置98例，中央前回的厚度大于中央后回的93例，中央前回与中央后回厚度之比左侧半球：1.736，右侧半球：1.652；额上沟与中央前沟相交的80例，31例患有脑内疾病的磁共振影像病变的位置与临床神经定位是相一致的。

Furrowing opener is one of important components in seeding and fertilizing. They often work in the soil with high moisture content. Soil adhesion on the surface of furrow opener increase the drag resistance considerably, makes the opened furrow irregular and depth of furrow not uniform, influences the performance of seed and, sometimes, makes them stop working. All these phenomena will influence the seeding quality.

开沟器是播种机、施肥机上的重要部件，在含水量较大的土壤中工作时，土壤粘附在工作表面，改变了表面形状，导致牵引阻力增大，开出的沟形不整齐，使种子在沟中的深度不一致，影响播种质量，严重时使出苗率降低10%，甚至使其无法作业。

As he approached, the outlet became more and more distinctly defined. It was a pointed arch, lower than the vault, which gradually narrowed, and narrower than the gallery, which closed in as the vault grew lower.

在他逐渐走近时，出口越来越清晰了，这是一个圆的拱门，比慢慢降低的沟顶矮，没有那随着沟顶降低而逐渐缩小的沟管宽。

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。