蚀的

Ogee spillway tunnel s are widely used in middle or high head water conservancy and hydropower projects.

龙抬头式泄洪洞在中、高水头的水利水电工程中应用十分普遍，其突出的水力学问题是反弧段的空蚀破坏，反弧段空蚀破坏的部位常见于反弧末端、反弧段下游底板和反弧段下游侧墙。

Its main problem in projects is cavitation damage of ogee section, which can be frequently found in the end, downstream baseboard and downstream sidewall s of ogee section.

龙抬头式泄洪洞在中、高水头的水利水电工程中应用十分普遍，其突出的水力学问题是反弧段的空蚀破坏，反弧段空蚀破坏的部位常见于反弧末端、反弧段下游底板和反弧段下游侧墙。

It was concluded that:① soil deflation rates, at any certion wind velocity, decreased exponentially with the increase of G d ;② the effects of gravel mulch restraining soil deflation under 5 experinced gravel spread patters, at a certain G d , follow a order of Parallel strip spread

在一定的风力条件下，吹蚀速率随砾石覆盖密度的增加呈现指数递减变化；在一定的铺压密度下，不同铺压方式表现出不同的吹蚀抑制效应，从小到大依次是：平行条带铺压＜簇状铺压＜斜交条带铺压＜垂直条带铺压＜随机铺压。

The main characteristics, such as the matching behaviors of films coated on substrates in fabrication of concave cylinder photoresist microlens arrays, the structural parameter design of photoetching mask which is relevant to the fabrication of the microlens, and control basis of photoresist mask technological parameters, are analyzed respectively.

分析了在光致抗蚀剂柱凹微透镜图形制作过程中的膜系匹配特性，与制作该种微透镜有关的光掩模版的主要结构参数，以及光致抗蚀剂掩模工艺参数的控制依据等。

The merits of its performance, it is representative of the advantages and disadvantages of pump performance, the anti-clogging sewage pump performance, the level of efficiency and cavitation performance, anti-abrasion performance mainly by the pressurized water pump and leaves room to ensure that the two major components.

其性能的优劣，也就代表泵性能的优劣，污水泵的抗堵塞性能，效率的高低，以及汽蚀性能，抗磨蚀性能主要是由叶泵和压水室两大部件来保证。

From these result of the experiment, the dynamic modeling can be simulated effectively, when the move speed of tip is faster the shear force in the tip is bigger. In the lithography process the motion of tip influence by the pile up, it leads to the serration surface of the groove, is like the surface of actual material of the cutting process.

由加工成形与磨耗结果回馈，可有效做探针动态建模，并模拟出，当探针移动的速度越快时，针尖所承受的剪应力越大，并且在蚀刻过程中，针尖受表面堆积物的影响，导致沟槽表面类似锯齿形的蚀刻表面与实际加工之情形相似。

This particular eclipse is special because it will be the longest total solar eclipse in this century.

这是一次特别的日蚀，她的特别之处在于；是本世纪的一次最长时间的日全蚀。

The major source rocks in the Chagan sag are composed of the second member of the Bayingebi Formation of Lower Cretaceous.

查干凹陷火山岩油藏的主力烃源岩为下白垩统巴音戈壁组二段；储集空间是原生孔隙和原生裂缝，局部为由于后期溶蚀作用产生的溶蚀孔隙和构造作用形成的构造裂缝；苏红图二段的棕红色泥岩是主力盖层。

In the North Ordos basin the sandstone-type uranium deposits developing in the system of sandstone beds of sedimentary facies of braided river course in Midde Jurassic Series,at the same time it happen some show of ore:the alteration zone of chloritization,bleaching decoloration and carbouation of epigenetic alteration,which show of ore are immediate and indirect for uranium mineralizing process.

摘 要：发育于内蒙古鄂尔多斯盆地北部中侏罗统直罗组辫状河相杂砂岩体内的砂岩型铀矿，有一系列较为特殊的与放射性铀成矿有直接或间接关系的成矿地质现象：绿色化蚀变带、漂白退色化带、二次胶结钙化砂岩团块及钙化砂岩断续层与&钙化木&后生蚀变现象；在与铀矿化和与油气的关系认识上存在一定分歧。

Meanwhile, it is also illustrates that the smaller chromium carbides have less restriction to forming thin splats than larger ones, which beneficial to limit the size of pieces removed by impact of the sand particles, and the higher volume fraction of small chromium carbide may effect the erosion through enhancing interlamellar bonding of the splats which leads to increase the erosion resistance of the coating.

揭示了细小碳化物颗粒有利于获得扁平粒子厚度较小的涂层结构，可减小涂层冲蚀磨损过程中每次剥落的体积；较高含量的细小碳化物颗粒有利于提高涂层扁平粒子间的结合，从而提高涂层抗冲蚀磨损性能。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。