可选择的

The results show that due to the effect of laser beam quality on focal beam waist radius,focal angle and focal length,laser beam quality decides the beam focusing ability and the processing capacity of laser system.

结果表明，光束质量对聚焦光束的焦斑、聚焦角和焦深的影响不仅体现了激光源的可聚焦性，而且也标志了激光源的可加工能力，这是聚焦系统和焦点位置在选择过程中应该考虑的重要因素。

System speaking of the Master CAM, first must establish the components the geometry model, according to the components actual size, draws its processing part the contour line, does not need to draw the entire components the model, guaranteed the computation production the cutting tool way coordinates accuracy, and may use the Master CAM Chinese Library level the function, when determination cutting tool way, transfers or the hideaway, the selective treatment needs contour line; Next, the formulation processing craft and the definite craft parameter, chooses the cutting tool, the processing semi finished materials, the work piece origin of coordinates again and so on, establishes the work piece coordinates system, definite work piece coordinate system and engine bed coordinate system relative size, thus obtains the components processing correct cutting tool way; Finally, the simulation function which system provides using the Master CAM, the realization simulation processing.

对于Master CAM系统而言，首先要建立零件的几何模型，根据零件的实际尺寸，画出其加工部分的轮廓线，无需画出整个零件的模型，以保证计算生成的刀具路径坐标的正确性，并可利用Master CAM中图层的功能，在确定刀具路径时，加以调用或隐藏，来选择加工需要的轮廓线；其次，制定加工工艺并确定工艺参数，再选择刀具、加工毛坯、工件坐标原点等，建立工件坐标系统，确定工件坐标系与机床坐标系的相对尺寸，从而得到零件加工的正确刀具路径；最后，利用Master CAM系统提供的仿真功能，实现模拟加工。

Moreover, solutions and strategies were proposed to solve the following crucial issues involved in conceptual process planning: product information identification based on key characteristics, multilevel resolution based manufacturing processes classification and selection, extensible core process planning, and producibility evaluation based on variation degree.

对概要工艺规划的关键技术，即基于关键特性的产品信息识别、具有多级分辨率的制造工艺分类与选择、具有可扩展性的核心工艺设计和基于差异度的可生产性评价，提出了解决方案。

Secondly, the athletes should adopt the vibration training method or the strength training method with unstable supporting surface.Because these two methods can not only activate motion element which couldn\'t be activated in most of time,but also add up the harmonization of the nerve muscle and make the proprioceptor trained.Thirdly,we should make or choose special archery shoes which have slip-resistant sole and suitable degree of bend in the front and back,suiting for the competition ground and adding Up the stability,fourthly,we should properly pay attention to the stage of lifting.

因为这两种训练方法不仅可激活多数情况下不能激活的运动神经元使力量增加，而且可增加神经肌肉的协调性，同时也使本体感受器得到训练，从而增强对射箭动作的感觉能力；第三，为射箭运动员定制或选择有防滑块鞋底、前后上翘程度符合运动员脚型特点的射箭专用鞋，既可以适合比赛地面特点又能增加稳定性；第四，适当重视举弓阶段的训练。

At first, this paper makes a systematic exposition of the content of supply-chain, supply-chain-management, purchasing in supply chain and purchasing management in supply chain environment and builds the theoretical foundation of this paper. Then, Make out the material classification from the acquirability of supply market and essentiality of material. Then based on this conclusion bring forward the proper purchasing strategies for Wuxi Weifu Group Co., Ltd. such as win-win strategy, ensure supply strategy, minimize cost strategy and minimize managerial cost strategy. Then sets up evaluated indexes system of short-term-efficiency-suppliers and long-term-efficiency-suppliers, applying the Fuzzy-evaluation method to evaluate suppliers. At the end of this paper, taking Wuxi Weifu Group Co., Ltd. as a case, comparing the status of its purchasing and supplier management, it puts forward some improvement suggestions to the existing problems in light of the above analysis such as the establishment and improvement of management information system, reengineering of purchasing organization and process, establishment of evaluated indexes system and implement of Just-in-time purchase.

本文首先系统的阐述供应链及供应链管理，供应链管理下的采购和采购管理的内容，从而构筑了本文的理论基础；继而，从物料采购的市场可得性和物料的重要性两种维度将物料分为战略性物料、瓶颈物料、重要物料、一般物料，在此基础上结合无锡威孚公司产品提出了相应的双赢、保障供应、最低成本、管理成本最小等采购策略；接着，建立了短/长期效率型供应商综合评价的指标体系；运用模糊综合评判方法对供应商的选择与评价体系进行了研究；最后，以无锡威孚集团有限公司为案例进行研究，结合前述的理论框架，通过对其采购和供应商管理现状的比较分析，找出不足之处，提出了改进建议和设想，如管理信息系统的建立和完善、采购组织和流程的重构、供应商选择评价体系的建立、即时制采购的实施等方案。

The result shown is a contributing cause to the accurate operation relevant to HVA performed by surgeons. And the possibilities of successful operation in HVA have been enhanced to some extent. The method-weight-bearing AP projection of the foot can administer to choice applicable diorthosis by surgeons and believed productively to reveal the patients' real conditions.

在此研究中我们共收集40位同程的大脚趾外翻的病患，经统计后发现此40位病患足部负重摄影的HVA都大於未负重摄影，除可提供外科医生选择合适的矫正术式外，可提供医生在手术中精确的调整其HVA，术后经床追踪确实大幅提高手术的成功。

The results show that under the follow conditions: pyrolysis temperature 270癈,active carbon and: ethyne black=9:l, carbon pretreated with HNOs, 7.18% Mn(NO3)2(vs. carbon support) catalyst can exhibit the best performance. In order to improve the electrocatalystic performance of MnO2, Pb(CH3COO)2 , La(NO3)3-6H2O and Ce(NO3)3-6H2O are chosen as additives of MnCVC air electrode . Electrochemical performance of the electrodes is studied by current-potential polarization curves.

为了提高催化剂的性能，选择了醋酸铅、稀土作为添加剂，采用稳态极化和交流阻抗测试方法，结果表明：铅的氧化物、稀土La和Ce可作为MnO_2催化剂的助剂来促进氧气还原反应的进行，醋酸铅添加7.5％时极化最小，在一般金属-空气电池的工作电流密度20～50mA／cm~(-2)下，电位比单独MnO_2催化剂可提升30～50mV。

The results show:(1) that the dynamical properties in the system depend on the degree of entanglement of the initial two identical two-level entangled atoms and the intensity of the coherent optical field, and the atomic dipole moment can be completely squeezed via choosing optimal degree of entanglement of the initial atoms in the feeblish optical field;(2) that the quantum properties of the system also depend on the degree of entanglement of the initial two identical two-level entangled atoms and the intensity of the coherent optical field, and the radiation field can be effectively squeezed via choosing optimal degree of entanglement of the initial atoms in the feeblish optical field.

结果表明：(1)相干态光场的强度和两原子的初始纠缠度对原子的动力学行为有很大的影响。原子布居的振荡频率及幅度和原子偶极压缩的演化规律与光场强弱和两原子初始纠缠度相关联。在弱光场下，选择合适的两原子初始纠缠态，原子偶极矩可以完全被压缩。(2)相干态光场的强度和两原子的初始纠缠度对光场的量子特性也有很大的影响。光场的二阶相干性质和光场的压缩效应均与光场强度和两原子纠缠度相关联。在弱光场中，选择合适的两原子初始纠缠度，光场压缩深度和时间可达到最大。

In intravesical radioimmunoimaging T/NT value provided a new means for determining the extent of malignant bladder tumor. It may be useful for the early diagnosis, the choice of treatment and evaluation of prognosis in bladder cancer.

在膀胱癌RII中，通过定量方法判断诊断结果可提高对较小肿瘤的诊断灵敏度，可判断膀胱肿瘤的恶性程度，有助于肿瘤的早期诊断和治疗方案的选择及预后的评价。

Circumferential defects resulting from resection of carcinomas in pharyngoesophageal region can be reconstructed with different operative techniques depending on the nature and extend of the defects.

结论下咽颈段食管癌切除术后所致的环周缺损可依据缺损的范围和患者的情况选择不同的修复方法，只要适应证掌握得当均可获得满意的修复重建效果。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐