制造方法

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。

This method is used to estimate cost of new parts according to existing cost data of similar parts by calculating fuzzy close-in degree of new parts with existing similar parts,and manufacturing cost estimation can be implemented at the initial stage.

提出了一种基于相似性的零件成本估算方法，该方法通过计算新零件与类似的已有零件的贴近度，依据类似的已有零件成本资料估算新零件的成本，实现了零件制造成本早期估算。

The old idea of there being one true way to install a system was popular ten or more years back. You had to buy just the right stands, place your speakers just so with a particular cable connecting them to the amp, put your turntable on a specific model of mass-market coffee-table and so on. Oh and not have a telephone, let alone a TV set, in the same room.

器材制造企业能够不停地推出值得我们期待的产品，但是这些产品的测试工作只是在特定的环境中进行的，因此生厂商会推荐我们比较通用的"安全"设置方法，这些方法确实值得我们记住并应用但是它并不是约束我们的强制性的规则。

In this way, it's convenient to achieve rectangular coordinate of cam contour line and provide a new simple practilal method to its design and manufacture.

用这种方法可以方便地求出凸轮廓线的直角坐标，为凸轮的设计和制造提供了一种简捷可行的新方法。

The theory of envelopes of one-parameter family of surfaces is used to determine the surface geometry of cylindrical cam profile.

因此，基于NURBS的空间凸轮设计方法简单易行，用该方法制造的空间凸轮在高速传动时具有传动平稳、噪声低、使用寿命长等优点。

This present algorithm further distinguishes itself through sufficiently utilizes the advantage that the vector sensors provide from other beam space DOA algorithms in several regards: 1 beams are formed in the vector-field domain; 2 produce at moderate signal-to-noise ratio estimation performance comparable to the traditional scale array methods;3 these vector-field beams are formed blindly using no apriori source information and coarse estimates of the direction cosine are derived to start off MUSICs iterative search so it demand less computation; 4 deploy agilely , since the fact that the output channel is various .

本文提出了矢量传感器阵列的自适应综合校准补偿方法，还提出利用单矢量传感器速度协方差矩阵分解来求解目标源方位，使得我们不要求校准源是合作性的，也无需知道校准源的先验知识，这比起常规辅助源校准方法具备较大宽容性。随着高性能阵列处理技术及数字信号处理硬件的快速发展和矢量传感器制造工艺的不断成熟，矢量传感器将在新型水雷、低频远程智能鱼雷、声纳浮标、低频拖曳线列阵和新型舰壳声纳，灵巧传感终端，战场监视系统，反隐形雷达，通讯等军民用领域取得良好的发展应用前景。

A new type of dither mechanism with high performance is designed by using this method.

从而找到了一套设计抖动机构的新方法，并运用此方法设计制造了一种性能优良的抖动机构。

Draw lessons from technical assessment method of flue gas desulfurization process, the paper employ the technical assessment of ESP"s.By integrating the expert"s experience and knowledge of designing, production, assemblage, and operation, the paper built up the technical assessment indicatrix body system and assessment system on the base of the ESPs technical investigation.

本文借鉴在烟气脱硫领域应用较为成熟的技术评估方法，提出了一种适用于电除尘技术的评估方法；通过集成燃煤电厂电除尘器理论、设计、制造、安装和运行等行业专家的经验知识，在深入调研电除尘技术现状的基础上，建立了电除尘技术评价指标体系和评估系统；利用可视化编程工具Visual Basic结合SQL Server数据库开发了评估系统软件。

A logical product structure model was constructed which can describe the infinite product variants,and support to solve product configuration under the mixed environment of Assemble-to-Order and Make-to-Order. In order to be identified and managed ,Logical product structure model was described with the knowledge representation method based on production rule.Finally the feasibility of the method was confirmed by simulation of a simplification automobile product family.

构建了一种逻辑产品结构模型，它能够描述无限种可能的产品变体，支持解决按订单制造与按订单装配相混合环境下的产品配置问题；并用基于产生式规则的知识表示方法描述了逻辑产品结构模型，以便于计算机识别及处理，最后通过一个简化汽车产品族的案例仿真来验证本方法的可行性。

A new design decomposition method is proposed and applied in the design of the Multifunctional Rapid Prototyping Manufacturing System .

提出一种新的产品设计分解方法，并应用新方法分析了多功能快速原型制造系统的设计，并获得了明晰的、有指导意义的结论。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。