工作单元

The working principle of the logical control unit in the fuel switch circuit controller is expounded.

介绍汽油/天然气两用燃料汽车的燃料转换控制原理及检修方法，详细阐述转换开关控制器逻辑控制单元的工作原理。

This paper introduces its working principle, process, unit technological design.

本文以某造纸污泥的干化为例，介绍了该工艺的工作原理及流程，工艺单元设计等。

This paper presents the concurrency control scheduling for the object-oriented distributed transaction processing in the workflow management system with massage queue and thread architecture by using lock of page unit.

使用消息队列和多线程，以页为封锁单元，给出一个基于工作流管理系统的面向对象分布事务的并发控制调度算法。

The paper introduced work principle, structure characteristic, design method and application range of twin cone rolls axial mill; introduced the theory and method of structure optimization and FEA; introduced the status of research in twin cone rolls axial mill home and overseas; introduced the status of research and application about the FEA in forging and pressing equipment.

本文介绍了双锥辊辗压机的工作原理、结构特点、设计方法及适用范围、有限单元法和结构优化的理论和方法、国内外双锥辊辗压机的研究现状、国内锻压设备机架结构有限元分析研究和应用现状。

The focus of this design is automatically drilling vertical milling machine design, including the mechanical structure design, mechanical drive system design, and the choices and design of components on a table ,it is include: screw, timing belt, and the stepper motor Selection Guides; circuit is the main elements of the last part of the design , the control unit such PLC as the main can be quickly and easily complete the task of feeding the PLC's work, and designs the principles and procedures required by the design.

本设计的重点是自动立式钻铣床的设计，包括了机械结构设计、机械传动系统的设计，并对工作台的元件进行了选择和设计：包括丝杠、同步齿形带、步进电动机和导轨的选型；最后部分则是电路设计方面的主要内容，以PLC为主体的控制单元可以快捷方便的完成进给任务，对PLC的工作原理和本设计所需要的程序进行了设计。

Study engineering drawings and blueprints, determine the materials required, and plan the sequence of tasks to cut metal most efficiently · Construct patterns and templates as guides for layouts · Lay out reference points and patterns on heavy metal according to component specifications · Rig, hoist and move materials to storage areas or within worksite · Assemble and fit metal sections and plates to form complete units or subunits using tack welding, bolting, riveting or other methods · Set up and operate various heavy-duty metal-working machines such as brake presses, shears, cutting torches, grinders and drills, including computer numerical control equipment, to bend, cut, form, punch, drill or otherwise form heavy-metal components · Install fabricated components in final product.

研究机械制图和图纸，决定所需材料，并计划工作顺序，有效地切割金属。 2。构建模式和模板作为布局向导 3。按照组件规格在重金属上设计参考点和模型 4。装备、起重机和运输材料入库或在工地场内 5。组装和安装金属部件和板材形成全套装置，或通过点焊、螺栓连接，铆接法或其他方法形成次单元。 6。建立并操作各种重金属加工机床，例如压弯机、剪床、割炬、磨钻机，包括数控设备，压弯、切割、成型、打洞、钻孔，或相反形成重金属组件。 7。在成品上安装已制造好的组件 Structural metal and platework fabricators and fitters 结构金属和板金加工制造工和安装工

Contains all of the above cases the cells also need to consider the work if the last line of the table is hidden, and what methods ...

包含 上述所有情形的单元格此外，还需要考虑工作表中的最后一行是否被隐藏了，而哪些方法。。。

In the process of building and using the mass concrete structures, because of the effect of out-side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance Using nondestructive testing method to test the concrete"s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseasesThis dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic FEM to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, Researched the principles of the first-arriving waves" phase when the cracks" depths are not same, obtained the relation between the inversion point and the cracks" depth, which has the direction sense in the application of projects,The second part of this dissertation is CT , which used the ultrasonic wave running through the tested-substance to get arriving-time of the ultrasonic wave, then inverse the image This dissertation drawed one CT program which can well present the different little cells ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested-substance, CT has the better using foreground..

在混凝土结构的施工及使用过程中，由于受其自身及外界各种因素的影响，常常会产生一些缺陷，对结构物的承载能力和耐久性造成严重影响，采用无损检测技术进行质量检测和健康诊断，这对混凝土结构开展安全、稳定性评估以及病害隐患治理研究具有重要意义。本论文主要针对大体积混凝土结构缺陷的检测方法展开研究工作，重点讨论了超声波法检测混凝土结构裂缝的基本原理和方法及其特点、适用范围，运用动力有限元数值模拟其检测过程，探讨了有裂缝缺陷的混凝土结构在脉冲荷载作用下弹性波的传播及其变化特征，研究了不同裂缝深度下首波相位变化规律，得出了反转临界点与裂缝深度之间的关系，这对实际工程应用具有指导意义。声波CT是一种新的无损检测技术，它是利用声波穿透被检测体获取声波接收时间，来进行计算机反演成像的技术。本文利用直射线法编制了层析成像程序，能较好地呈现被检测物体各微小单元的声波速度分布图像，从而对检测体的质量状况作出诊断评估，具有较好的应用发展前景。

The major fundamental job is the construction and complement of model elements library before MEM used.

特征单元模型库的建立、充实和完善，是应用模型元方法解题的最主要的基础性工作。

The detailed works are as follows: 1. Realization of numerical simulation for rotationally asymmetric sound absorbent structures by finite element method.

具体工作在如下两方面：(1)具有旋转对称腔体和非对称基材单元的水下吸声结构声学特性在数值仿真的实现。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。