冲蚀的

For high-speed flow of medium, the gate to open in local conditions can cause the vibration of the gate, and the vibration may damage the gate and the valve seat sealing surface, and cutting medium will suffer erosion flashboard.

对于高速流动的介质，闸板在局部开启状况下可以引起闸门的振动，而振动又可能损伤闸板和阀座的密封面，而节流会使闸板遭受介质的冲蚀。

This paper is based on the features of technics structure, operation condition, import and export boundary conditions, characteristics of medium of petrochemical pipeline and so on. The simulative computational theory and model of multiphase flow are established according to the method of CFD to analyse the hydrokinetics redical factors that can affect the pipe erosion damage of multiphase flow.

本文针对石化管道的工艺结构、运行工况、出入口边界条件和工艺介质特性等特点，基于计算流体力学的方法对多相流进行仿真理论计算及模型建立，以此来分析影响管内多相流冲蚀破坏的流体动力学关键因素。

On the basis of examination of the wear behavior and worn surface morphology of the coatings after abrasive wear and erosion wear respectively, and the enhancing mechanisms of interlamellar bonding caused by unmelted carbide particles during deposition, the effects of the microstructure on its performance are discussed.

其次，在分析研究了涂层磨粒磨损和冲蚀磨损失效形貌以及未熔化碳化物颗粒对涂层层间结合强化机理的基础上，探讨了磨损机制、磨损模型的建立及涂层结构对磨损性能的影响规律。

Based on the effect of the sanding on the bradenhead, the ground flow pipeline gtv and surface equipment in high pressure and high gas rate well in west Sichuan, and combination with actual engineering geologic characteristic and operation status, the paper analyzed the influencing factor of sanding in the fractured well, and put forward the countermeasures to effectively prevent sanding.

川西坳陷致密砂岩气藏拥有大量的高压高产气井，支撑剂回流出砂问题比较突出。由于气井压力高、产量高、流速快，加砂压裂后常出现支撑剂回流出砂的现象，对井口及地面流程管线闸阀、地面设备造成强烈的冲蚀破坏作用，已经严重影响到气田高压高产气井的正常生产。

The second phases are precipitated and aggregated within DAS in the BM specimens that are easily to form a soft zone. The increasing erosion rate is owing to the soft zone cut by the erodent.

BM材的晶出相分布集中，树枝状晶的主干和枝臂形成软质区，容易受到冲蚀颗粒的切削，磨耗阻抗较低。

It is noted that the microstructure of the blade material much affects the abrasive erosion pattern and erosive wear mechanism.

分析了材料的微观组织结构对材料表面的冲蚀磨损形貌、磨损机理的影响作用。

On the basis of examination of the wear behavior and worn surface morphology of the coatings after abrasive wear and erosion wear respectively, and the enhancing mechanisms of interlamellar bonding caused by unmelted carbide particles during deposition, the effects of the microstructure on its performance are discussed.

其次， 在分析研究了涂层磨拉磨损和冲蚀磨损失效形貌以及未熔化碳化物颗粒对涂层层间结合强化机理的基础上，探讨了磨损机制、磨损模型的建立及涂层结构对磨损性能的影响规律。

The algal bloom sites and areas varied with seasons because many agricultural activities on the upstream of Techi reservoir and fertilizers ran off to the reservoir which provided a good environment for the growth of Peridinium bipes.

究其原因发现，水库上游集水区为梨山温带水果及高丽菜的主要产区，大量的营养盐随著山坡土壤的冲蚀而流入水库上游，因而提供二角多甲藻大量繁殖之良好环境。

NiWC35 spraying and fuzing coating and LX88A coating would be applied abroad, because the process is simple and the depositing can be carried out on the spot.

纳米WC/12Co涂层性能最为优良，它具备更高的结合强度、更好的塑性和更好的抗冲蚀性能。

With the help of modern computational fluid dynamics tecnology, this thesis carries on a numerical simulation of annulus multiphase flow of the conventional auger drill stabilizer; it points out the deficiency of the annulus gas in cutting-carrying and lifting; and attempts to develop a drill stabilizer that are suitable for the gas drilling.

本文试图借助现代计算流体力学技术，对常规螺旋钻柱稳定器环空多相流动规律进行数值模拟研究，指出在环空气体携岩举升方面存在的不足，开发一套适合于气体钻井的新型钻柱稳定器，提出全井段环空流场改善方法，实现气体钻井防斜打快，减少冲蚀，提高井眼净化能力的目的。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。