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The Large eddy Simulation is used to simulate the flow field and cavitation on an Orifice Energy dissipator. The characteristics of cavitation was analyzed. The calculated and the measured pressure distribution and the cavitation were in agreement.

采用大涡模拟方法对消能孔板流场及空化现象进行了数值模拟，研究分析了消能孔板空化特性，计算所得的压力分布及空化特性与减压模型实验结果进行了比较，二者符合良好。

Fe, Ni and Mn, in form of divalence, and Cr in form of trivalvence dissolve into solution.

蚀孔内发生金属的活性溶解腐蚀；Cr以三价离子，Fe，Ni和Mn以二价离子形式溶解；Fe，Cr的溶解量对孔蚀自催化效应有显著的影响。

Scanning electron microscopy observed that the mesoporous silica single crystal had a regular rhombic dodecahedron morphology with a uniform particle size of 5 μm.

扫描电子显微镜观察到这种介孔二氧化硅单晶具有菱形十二面体形貌， X射线衍射和透射电子显微镜测试结果证实这种介孔单晶属于简单立方Pm3n对称结构。

And the price of shoe of small hole bottom that is raw material with polyvinyl chloride is dog-cheap, but because density of raw material itself is big, although be after hair aperture very heavy still, and, the content sex such as function of its thermal stability, low temperature, resilience and skid resistance is poor.

而以聚氯乙烯为原料的微孔底鞋价格非常便宜，但由于原料本身密度大，即使在发孔后仍然很重，而且，其热稳定性、低温性能、回弹性及防滑性等物性差。

The replacement process of dolomitization is a volume replacement for volume, not a mole for mole.

白云岩储层中的孔隙是各种溶蚀孔而非白云石化等摩尔交代的体积收缩孔。

The surface displacement and deformation caused by the construction of double parallel tunnels is more complex than the single tunnel s.

城市中隧道常以双孔平行隧道的形式出现，而双孔平行隧道施工地表位移及变形比单孔的复杂，通常第二条隧道要滞后修建，所以当第二条隧道施工时，会对第一条隧道施工地表位移及变形产生影响，同时第二条隧道施工地表位移及变形也会受到第一条隧道的影响。

Type 1-1-1,2-2-1 and 2-2-2 account for 91 4%;The appearing rats of distal lingual canal are 24 7%;The appearing rats of double root canal orifices are as follows:Medial canal 78 3%,distalcanalIt don't ...

远中舌根的发生率为 2 4 。7%；双根管口率：近中根为 78.3%，远中根(不含远中舌根，下同)为 19.3%；双根管率：近中根为 88.3%，远中根为 2 3.3%；双根尖孔率：近中根为 5 6 。7%，远中根 8.3%，单根管口而有双根尖孔者，近中为 6 。7%，远中为 3.3%。结论下颌第一恒磨牙根管的类型复杂，充分了解其根管解剖对提高根管预备效果、减少根管遗漏有重要意义。

This article introduces an easy way of deep machining and puts forward taking use of normal machine tool,simplifying craft installment,improving twist drill and connection types of drill stem by analyzing many influent factors on deep machining,which include discharging scrap,wear and tear,radiating and orientation.

本文介绍了一种简便的深孔加工方法，通过对深孔加工中排屑、磨损、散热和导向等诸多因素的分析，提出了利用普通机床，简易工装，改进麻花钻及钻杆的连接形式，在实践使用中取得了较好的效果。

An opening and at least one ventilation hole are provided in opposite sides of the partition wall, respectively, so that a part of air and dust vortically moving in the cyclonic air flow chamber are introduced into the dust collection chamber through the opening and the air in the dust collection chamber flows back into the cyclonic air flow chamber through the ventilation hole.

在该隔离壁的相对的侧面提供开口和至少一个通风孔，使得在该旋风气流室中旋涡状地运动的一部分空气和灰尘通过该开口被引入集尘室中，并且集尘室中的空气通过该通风孔回流到旋风气流室中。

This experiment provides an optional holelocation for the scientific drilling, and reveals that there are deeply buried rutilecontaining eclogite bodies existing beneath the drilling site.

同时，主辅线反射地震法调查提供了一个后备孔位，它是将来扩大矿区储量的首选勘探孔位。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。