无选择的

According to the above-mentioned experiments, the study select discriminable data which form discriminant function and make discriminant analysis on the objects (students from junior Grade Two and senior Grade Two, with academic achievements ranging from excellence, ordinariness, to failure) with ten members in each group, which leads to a discriminant system of middle school students with different academic achievements.Ⅳ.

本研究研制和开发了WACOM-2005-1型数码写字板，采用手书运动分析技术，分别选择初二、高二年级学优生、中等生、学差生各12至24人进行研究，从自然手书运动、控制性手书运动、在不同压力状态下的手书运动以及手书运动学习四个方面，通过8个系列实验，探索了左右手、有无视觉参与的自然手书运动特点；定点直线、追随手书的控制性手书运动特点；数字认知压力、汉字认知压力、情绪变化、有无噪音条件下的手书运动特点；手书运动学习的特点。

Because of the high cost of permanent magnet, optimizing for brushless DC motor design is an inevitable choice, which is a comparatively mature and multiplicate technique after these years developing.

因为永磁材料的成本较高，所以对无刷直流电动机进行优化就成了必然的选择，无刷直流电动机的优化发展至今，已经是一项比较成熟的技术，优化方法也多种多样，各有优异。

The reasonable selection about the parameters of radius-length ratio and speed of small-type oilless compressors was given.

通过对小型无十字头压缩机的受力分析和试验研究，阐述了重要结构参数径长比λ对活塞环的密封效果及使用寿命的影响，对小型全无油压缩机的径长比、转速的合理选择进行了分析。

Experimental research on the oilless lubrication compressor;2. The reasonable selection about the parameters of radius-length ratio and speed of small-type oilless compressors was given.

通过对小型无十字头压缩机的受力分析和试验研究，阐述了重要结构参数径长比λ对活塞环的密封效果及使用寿命的影响，对小型全无油压缩机的径长比、转速的合理选择进行了分析。

Analyzing basic characteristics of aluminium electrolytic capacitors we have discussed performances of high-frequency low-impedance poleless aluminium capacitors, have developed new operating electrolyte s and selecting appropriate materials we have made high-frequency low-impedance poleless aluminium electrolytic capacitors with maximum temperature 85℃ and lifetime 3000h.

从铝电解电容器的基本性能分析入手，对高频低阻抗无极性铝电解电容器的特性进行了分析和讨论，开发出新型的工作电解液，并选择合适的材料，研制出了可用于85℃，3000h的高频低阻抗无极性铝电解电容器。

For the examination of Multispectral radiation thermometry with first-order linear emissivity model:(1) the best MRT examined wavelength range for unoxidized aluminum alloys is from 3 m to 4 m;(2) unoxidized samples provide better temperature prediction than oxidized samples;(3) if the emissivity model can well represent the real emissivity behaviors, the more accurate inferred temperature can be achieved.

应用多光谱辐射测温法搭配一阶线性放射率模组於温度推测：(1)应用於推测无氧化试件表面温度之波段的选择以3 m到4 m的结果最好；(2)应用於推测无氧化试件表面温度的结果比推测有氧化试件表面温度的结果来的好；(3)当放射率模组越能模拟铝合金表面放射率行为，则所推测温度误差将越小。

After that, the author, based on the wasteless mining theories and his research experience, put forward creatively a new method to design and appraise for the wasteless mining, in which the modern applicable visualization technique are applied.

在采矿方案优选方面，发展应用模糊数学与层次分析法的组合决策优化方法对无废开采方案优选的指标体系、权值的分析处理与系统进行了综合评判，并建立了系统实用的方案优化选择数学模型，以获得最佳、合理的无废开采方案。

Secondly, two stage method is adopted in the selection of development strategy. In the first stage, combine the development strategy group with the result of SWOT to select the proper strategy. In the second stage, use AHP and QSPM to evaluate the spare development strategy project, then present the final combination strategy of "BOM to continue existing strategy, BOB and Twist web with contractile strategy; No-woof blanket and Asbestos blanket with giving up strategy".

采用两阶段法进行发展战略的选择，第一阶段结合战略群模型和SWOT分析结果对公司各产品可能采取的发展战略进行初次选择；第二阶段利用AHP分析结果和QSPM方法评价第一阶段备选的发展战略，提出了&BOM毛毯采取集中发展现有业务战略，BOB毛毯和螺旋干网进行战略收缩，无纬毛毯和石棉瓦毯采取放弃战略&的战略组合方案。

Half penalty method and optimism design of ten connecting bar mechanism of plunger slide in double action drawing press;2. The essential boundary condition is imposed by employing a penalty method .

将选择施加在&虚结构&控制点上的虚载荷作为形状优化的设计变量，并将它与无网格Galerkin法相结合来开展结构形状优化研究，采用罚函数法来施加边界条件，通过直接微分法建立了结构形状优化的离散型灵敏度分析算法，利用无网格法研究了节点坐标关于设计变量导数的计算。

Abstract］ objective to investigate anus sphincter preserved surgical method and indication for low rectal cancer.methods 15 cases with low rectal cancer were operated with eversion and pull-through anus preserved colorectal anastomosis through anus.results no patients died of operation,no patients was with fistula and stricture of anastomosis,no defecation incontinence happened after postoperative 20 weeks,only one patient was with local recurrence.following up for 8 months to 5 years,5 cases were with distant metastasis,4 of these died,one of these had lived with liver metastasis for 3 years.conclusion the indication of anus preserved operation should be chosen according to clinical stage and biological characteristic of rectal malignancy; eversion and pull-through anus preserved colorectal anastomosis through anus is a better anus preserved operation for low rectal cancer.

目的 探讨低位直肠癌保留肛门括约肌功能的手术方法和手术适应证。方法对低位直肠癌经腹经肛门直结肠外翻拉出保留肛门吻合术15例。结果全组无手术死亡，未发生吻合口漏和吻合口狭窄，局部复发1例，20周左右恢复正常排便排气功能，无大便失禁病例。随访8个月～5年，5例为远处转移，死亡4例，其中1例肝转移3年仍生存。结论根据直肠癌的临床分期和肿瘤的生物学特性选择保肛手术适应证，经腹、肛门齿线上直肠癌根治性切除，行肛门直结肠外翻拉出吻合是低位直肠癌较好的保肛术式。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。