覆层

The research presented in this thesis concentrates mainly on two fundamental subjects on technology of filling bed separation with waste through bore-hole to reduce surface subsidence. One involves the dynamic principles of development of strata separation and the other is related to ascertaining method of parameter of grouting.

本文重点研究了覆岩离层注浆减小地表沉陷技术的两个最基本的问题，其一是采动覆岩离层的动态发展规律；其二是注浆参数的确定方法。

This invention discloses a new technology for preparing rear earth ionic doped fiber prefabricated rods with DC-RTA technology in a sol-gel method including preparing sol containing necessary doped ions, coating said sol uniformly on the inner wall of the quartz glass tube and burning it under high temperature to coagulate and vitrify them to a doped layer and repeating the above process to form a fiber prefabricated rod by oxygen and hydrogen flame after the doped layer reaches to a designed thickness and the fiber prefabricated rod can be made to various rare earth ionic doped fibers by an ordinary drawbench technology.

本发明属于光纤制造和光纤激光技术领域，具体公开了一种利用溶胶凝胶方法中的DC-RTA技术制备稀土离子掺杂光纤预制棒的新工艺。该工艺步骤包括预先配制好含有所需掺杂离子的溶胶，将该溶胶均匀涂覆在石英玻璃管的内壁后高温灼烧，使之凝结并玻璃化为一层掺杂层。反复上述涂覆灼烧过程，在掺杂层达到设计厚度后由氢氧焰高温收棒形成光纤预制棒。该方法所得到的光纤预制棒可以通过普通拉丝工艺拉制成各类稀土离子掺杂光纤。

The process of the movement of overlying strata and surface is simulated factually.

根据关键层理论，分析了覆岩地层结构与离层的关系，探讨了覆岩离层发育过程的阶段性和周期性。

In this paper, the reasons caused unsuccess of the stratigraphic onlap hydrocarbon reservoir exploration are analyzed from aspects of the stratigaphic overlap boundary, reservoir forecast , oil-bearing belt.

从地层超覆边界、储层预测、含油条带和油气运移距离等方面分析了地层超覆油气藏勘探中的失利原因；指出勘探中确定精细地层超覆边界的准确位置和合理的部署原则，重视地层精细划分与对比，考虑油气运移范围等因素，对于地层倾角不大、含油气高度小的地层超覆油气藏尤为重要，可极大地提高该类油藏的勘探成功率。

Analysis on reflection structure and reservoir forecast in the carbonate stratum.;2. Accumulation characteristics and reservoir forecast of Gubei low-buried hill;3. In this paper, the reasons caused unsuccess of the stratigraphic onlap hydrocarbon reservoir exploration are analyzed from aspects of the stratigaphic overlap boundary, reservoir forecast , oil-bearing belt.

从地层超覆边界、储层预测、含油条带和油气运移距离等方面分析了地层超覆油气藏勘探中的失利原因；指出勘探中确定精细地层超覆边界的准确位置和合理的部署原则，重视地层精细划分与对比，考虑油气运移范围等因素，对于地层倾角不大、含油气高度小的地层超覆油气藏尤为重要，可极大地提高该类油藏的勘探成功率。

In addition, there are bond areas between the new and the primary coverage because of the growing up of the plating coat, which may lead to the emergence of micro crack on the coating owing to such causes as too big or uneven impact during plating process, little distortion of global granular zinc dust inside the plating coat, less tight coalescence of the zinc dust flecks.

由于形成镀层的过程处在酸性环境，在镀层增厚过程中不可避免把酸性溶液包裹在镀层里面，酸性溶液会与金属基体和镀层反应，产生氢气，必然会寻找通道选出，形成微气孔；镀层是逐渐形成的，新生镀层与原有镀层之间存在结合面；镀覆过程由于撞击力过大或者不均匀，镀层内部球形颗粒状锌粉变形较小，球形颗粒与球形颗粒的结合不严密等，这些原因会导致镀层产生微裂纹。

Through discussing the condition of surface coated diamond,the coating theory and the metalizing model,the techniques and development of coated diamond are summed up,and some newest achievement in this field are introduced,and the possibility of practical applicatio...

文章对金刚石表面镀覆条件、镀覆原理和形成的镀覆金属化模型进行了讨论，综述了金刚石表面镀覆金属层的技术及其发展，介绍了该领域的最新的研究成果，并分析了它们在实际生产中应用。

In order to discuss the effect of overburdens under injecting grouts in separate layers on the morphology of the water flowing fractured zone, continuous exploration for failure characteristics of the overburden of working face 14308 of Dongtan Coal Mine under injecting grouts in separate layers and fully mechanized sub-level caving condition was processed by the method of underground uphole water injection technology by intervals with bore-head leaking multi-loops affusion system.

为了探讨覆岩离层注浆条件对导水裂隙带形态的影响，采用前端泄露式多回路注水系统，应用井下仰孔分段注水法对东滩煤矿14308工作面覆岩离层带实施注浆充填条件下综采放顶煤导水裂隙带的破坏特征进行了连续探测。

The present invention relates to an ultraviolet detector and manufacture method thereof, in which a buffer layer is formed on a baseplate and a P-type GaN layer is formed on the baseplate by using epitaxial method. By availing ion-distribution-and-vegetation technology, a first N-type GaN layer is vegetated and invested in the P-type GaN layer by distributing and vegetating Si.sup.+ ions in that layer, and a second N-type GaN layer having a thicker ion concentration is invested in the N-type GaN layer.

专利简介本发明系关於一种紫外光检测器及制程方法，其主要系在一基板上形成一缓冲层，利用磊晶法在缓冲层上形成一P型氮化镓系层，并接著以离子布植技术将Si+离子适当地布植於该P型氮化镓系层中，形成一N型氮化镓系层及包覆在此N型氮化镓系层中且布植浓度更高的另一N型氮化镓系层，最后在该P型氮化镓系层及第二N型氮化镓系层上分别镀上一环状金属层及另一金属层，以作为欧姆接触层。

Brake seat with brick two banana leaves, which hold up on a two-Yang Lin, spherical covered bowl, covered bowl stands at the top of brake rod series with similar launches, Baogai, round light, Yang-month and 4 Sarah.

刹座上有砖雕两层蕉叶，其上的两层仰莲托起球形覆钵，矗立覆钵顶端的刹杆串联着相轮、宝盖、圆光、仰月及四个宝珠。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。