冲

The Al〓O〓/ C nozzles showed a brittle fracture induced removal process in the entrance of the nozzle and mainly plowing type of material remove mode in the middle of the nozzle under the condition of SiC erodent impacting.

Al〓O〓/c陶瓷喷砂嘴在SiC磨料的冲蚀下，入口处主要表现为脆性断裂冲蚀，中间区域主要表现为微切削冲蚀。

EM analysis the worn surface morphology shows the following results: elastic deformation and fatigue are the main wear mechanisms of SMCC when impacted with lower erodent velocity, while the dominant mechanisms change into microcutting and microploughing with the increment erodent velocity.The slurry erosion behaviors of ceramic particles reinforced epoxy matrix composite coating were explored using a self-designed slurry pot tester.

首次采用自制的模拟罐式泥浆冲蚀试验机对环氧基复合涂料的泥浆冲蚀磨损性能进行了研究，通过调整固化剂聚酰胺与环氧的质量比，设计出最佳的基体组成；尽管涂层的铅笔硬度对其抗冲蚀性能有一定的影响，但起决定性作用的因素是涂层的韧性和硬度有机结合。

Instead, the erosion resistance is increased after FSP. The refined and uniformly distributed second phases, which are resulted from the FSP, can help to increase the hardness and further reduce the brittle fracture of the specimens. Si and nvAl3CuNi phases are usually found near or end of the grooves with little fracture. But the τ1 (Al9FeNi) phase is easier to be removed by the erodent cutting. It can be inferred that Si and nvAl3CuNi are useful to improve the erosion resistance of A384 aluminum alloy, but τ1 (Al9FeNi) phase is detrimental for the erosion resistance of A384 aluminum alloy.

经摩擦搅拌制程改质后，硬度提升，晶出相细化且均匀分布，降低脆性龟裂的现象发生，有助於改善A384铝合金的磨耗性质，其中，亦发现在冲蚀沟槽附近有残留和脆性破裂之共晶Si颗粒和nvAl3CuNiw晶出相，推测此两相为A384铝合金中有助提升磨耗阻抗的第二相；而τ1(Al9FeNi)晶出相则容易受到冲蚀颗粒的切削而被冲蚀颗粒移除，增加材料的重量损失，推测τ1(Al9FeNi)晶出相为A384铝合金中较不耐磨耗的晶出相。

On the basis of introduction and contrast of all kinds of developing and printing technology, we first discuss the LCOS display peculiarities and key optical techniques of the LCOS projection system. Then we make an analysis of the basic architecture and performance reeiiiirement of the digital picture printing system which uses LCOS as its displaying exposal system according to the practical application. And we propose the systemic blue print which includes USB transmission/SDRAM storage.

本论文在介绍主要的各类数码冲印技术的基础上，对相应的技术进行了比较，重点论述了LCOS冲印技术中LCOS液晶显示特性以及关键的投影系统的光学特性，在此基础上，结合实际应用，就LCOS投影技术在数码彩扩系统中的应用，详细分析了基工作原理和性能要求，提出了基于USB传输/SDRAM缓冲的系统设计方案，实现了完整的LCOS数码冲印系统的设计与调试。

These conclusions suggest that the extrusion rate and extent to east of the material is limited, in line with the "thrust imbricated conversion - limited extrusion model."

总的来看，肃北地区的主要断裂滑动速率和逆冲速率都比较低，叠瓦状逆冲现象比较普遍，区内有断裂、盆地、褶皱等多种构造参与了变形分解和运动转化，这些结论都说明了该地区物质向东挤出的速率和幅度是有限的，符合&叠瓦状逆冲转换—有限挤出模型&。

According to the chromatograms, we choose the several peaks which are more abundance as the characteristic peaks. Additionally, to compare the isocratic elution and gradient elution two systems, we find that it is obviously better to use the gradient elution.

另比较以等位冲提及梯度冲提方式进行高效能液相层析仪分离的结果，发现使用梯度冲提的分离效果明显较好。

If acceptable chromatographic results cannot be achieved with isocratic elution, gradient elution can then be considered especially when the analytes exhibit great physical properties difference.

当分析成分性质差异过大，单一组成移动相之冲提条件下无法有效冲提时就应考虑梯度冲提的方式。

Along the low-angle overthrust Early Permian marble and Early Triassic sandy slate were thrust southward over Paleocene-Eocene purplish red conglomerate of the Paleocene-Eocene Fenghuoshan Group and brick-red sandy conglomerate of the Oligocene Yaxicuo Group, forming many klippen of varying scales, and thick fault brecci.

沿低角度逆冲断层，早二叠世大理岩和早三叠世砂板岩自北向南逆冲推覆于古新统—始新统风火山群紫红色砾岩和渐新世砖红色砂砾岩之上，形成大量不同规模的飞来峰；沿主逆冲断层发育厚层断层角砾岩与断层泥，局部形成碳酸盐质糜棱岩。

Test results reveal that with the same area of the column section, the punching shear strength of the connections with nonrectangular columns is greater than that of the connections with square columns, and shear reinforcement can significantly enhance the strength and ductility of the connections with nonrectangular columns.

试验结果表明，与方柱－板柱连接试件相比，在柱截面积相同的情况下，异形柱－板柱连接试件具有较高的抗冲切承载力。抗冲切钢筋可以有效地提高板的冲切承载力和延性。

We have concluded five key tectonics geologic characteristics of Chinese foreland basins based on the study of the sedimentary infill, tectonics evolution, tectonic dynamics, spatial location distribution and structural deformation geometry.(1) The foreland basin is the superimposition of the compression sedimentary stratigraphic sequence with the extension basin, and the foreland basin includes underlying rift basin and upper dustpan flexure deposited basin.(2) The foreland thrustfold structural deformation has occurred four times since the Protozoic, in the Late Caledonian, Late Hercynian, Indosinan and Late Himalayan, respectively.(3) The foreland basin developed based on the control of two factors that are the basin basement collaged by many small plates or terrains and the rejuvenation of ancient orogenic belt, so the foreland basins or foreland thrusts are located in front of ancient orogenic belt.(4) The foreland basins and the rejuvenation of ancient orogenic belt make up a giant basinmountains system resulting from the distant effect of IndiaEurasia collision, which is located on the outer circle of Tibet Plateau, so the thrust deformation intensity, basin deposition range and coupling between orogenic belt and basin changed from strong to weak as from interior to outer circle of Tibet Plateau.(5) There are many structural styles of the thrust and fold belt in different basins, such as brittle behavior faultrelated fold, ductile behavior basementinvolved structure, basementinvolved faultrelated fold, and salt structure.

在综述前人认识的基础上，笔者通过对中国前陆盆地的构造演化历程、沉积充填特征、构造成因及其空间分布规律、构造变形特征等的研究，提出了中国前陆盆地构造地质发育的5个主要特征：(1)两种不同性质的原型盆地发生正反转的叠合性，即挤压构造下作为&本体&的前陆层序与拉张构造下作为&基础&的裂谷、断陷盆地之间的叠置；(2)显生宙以来中国大陆先后发生了4期前陆冲断构造演化的多期性，它们分别是加里东晚期、海西晚期、印支期和喜马拉雅晚期；(3)基于小克拉通基底拼贴后在造山带前缘复活再生的继承性，即统一拼合大陆内部的构造变形导致古造山带的复活，在古造山带边缘发育新生代前陆盆地或前陆冲断带；(4)在空间分布上受环青藏高原巨型盆山体系控制发生陆内变形的系统性，在环青藏高原巨型盆山体系内构造变形强度、盆地沉降幅度、盆山耦合程度等从内环向外环依次降低，从古造山带向克拉通方向构造变形强度依次降低，构造变形样式逐渐简单、构造变形时间依次变新；(5)前陆冲断带的构造样式由于受边界力学条件和沉积地层介质作用而具有多变性，存在沉积盖层内脆性变形的断层相关褶皱、造山带前缘韧性变形的基底卷入构造、与走滑构造相伴生的基底卷入的断层相关褶皱、盆地内部塑性变形的盐构造。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。