进行选择

Carry on structure analysis to the spare parts first, understand its structure characteristics to choose suitable semi-finished product and the semi-finished product manufacturing of the reasonable a craft thus;Then the technique request of spare parts carries on analysis, understanding it each process superficial accuracy grade and the surface rough degree, make it process the fixed position in the process and clip a tight way in assurance inside the scope of economic accuracy, draw up the machine of spare parts to process craft process thus and further, choose each work preface to process equipments and craft material, the assurance slices to pare dosage and craft size, computing the man-hour of each work preface settle sum.

首先对零件进行结构分析，了解其结构特点从而选择合适的毛坯以及合理的毛坯制造工艺；再零件的技术要求进行分析，了解其各加工表面的精度等级以及表面粗糙度，使其在经济精度的范围内确定加工过程中的定位和夹紧方式，从而进一步拟订零件的机械加工工艺过程，选择各工序加工设备以及工艺装备，确定切削用量以及工艺尺寸，计算各工序的工时定额。

Through the use of a coordinate axis and function tools, it tries to create a mathematical model and integration of the choice funnel and the counter-fact inference, and to make a functional analysis of the funnel model and find the mathematical relationship between the choice funnel and the counter-fact inference, and finally to definite the demarcation of the range of its usage and the limit of its effectiveness.

通过使用坐标轴和函数工具，对"选择的漏斗"和"反事实推理"进行数学建模与整合，对漏斗模型进行函数分析，从而推导出"选择的漏斗"与"反事实推理"之间的数学关系，界定两者的使用范围和效力限度。

This article introduces the development and the evolution of IT channel in our country, focusing on the IT channel pattern based on the electronic commerce. Analysis from transformation of value chain explains electronic commerce the fundamental reason which affects the IT channel. Various analyses which IT channel is affected by electronic commerce have been carried out. The relationship between the consumer network purchase behavior and the IT electronic channel has been explained, and necessity of the middle man electronic commercialized pattern had been discovered. Standing on the previous research, this article summarizes the tendency of IT channel development and predicts the future of orientation of IT channel so as to provide some principles for medium and small sized channel members. In the last part of the article, it visualizes the future new IT channel pattern from the angle of economics.

本文介绍了我国IT渠道的发展与演变过程，重点分析了基于电子商务的IT渠道模式，从价值链的改造这个角度进行分析，说明电子商务对IT渠道影响的根源所在，对电子商务影响IT渠道这一事物进行了各种层次和角度的分析，解释了消费者网络购买行为和IT电子渠道中产品选择的关系，揭示了中间商电子商务化的必然性，在以上研究的基础上，总结了IT渠道的当前发展趋势后，本文结合以上研究内容，做出对IT渠道走向的预测，为中小型渠道成员的战略选择提供了一定依据，最后从经济学角度出发做出了对未来IT渠道新模式的构想。

Objective: To study osteogenic capability of rabbit bone marrow stromal cells and biological characteristical identification in vitro in order to explore the appropriate methods of osteoblast culture in vitro and to select an idea source of seed cells for bone tissue engineer.

目的：研究兔骨髓基质细胞在体外培养条件下的成骨能力及生物学特性，探讨简便易行的成骨细胞体外培养方法，为组织工程选择理想的种子细胞来源。方法：取新西兰白兔骨髓液经离心后得骨髓单个核细胞，以1× 106／ml的细胞浓度进行培养，经传代培养，选择条件培养液培养(1640完全培养液中加入地塞米松10-8Smol／l，β-甘油磷酸钠10mmol／l，VitC 50μg／ml)作为骨髓基质细胞增殖和成骨的调节因子，通过倒置显微镜、HE染色、扫描电镜、碱磷酸酶(alkaline phosphatase，ALP)测定、Ⅰ型胶原免疫组化染色和四环素荧光钙染色等手段对获得的细胞进行生物学特性研究。

Knitting oil stable at high and low temperature was prepared by emulsification between 20# white oil as base oil and O-3 and O-6 of narrow molecular weight distribution, Span-80, Tween-80, PK, and barium petroleum sulfonate as emulsifier. Condensation point, residue analysis, emulsifying properties, permeability, antistatic performance and application effect were used to characterize knitting oil.

选择温度稳定的20#白油为基础油，选择窄分布O-3和O-6、Span-80、Tween-80乳化剂，并加入PK和石油磺酸钡进行温度稳定型针织机油的合成，并采用残渣分析法、凝点测试、乳化性能、渗透性能和抗静电性能测试以及实际使用效果对所研制的针织机油进行表征。

First, on the basis of the theory of fairness and efficiency in tax, expense deducting is analyzed referring to the juristic principle, which provides theoretical basis and reference for the adjustment in expense deducting system. Second, by the method of induction and comparing, the author analyzes and introduces the expense deducting system in other countries or regions. Third, defects which exist in current expense deducting system of individual income tax are demonstrated. At last, connected to the reform of patterns of individual income tax, relative suggestions regarding to the adjustment of expense deducting system in our country are put forward, which is adopting mixed tax jurisdiction. The two patterns of family tax and individual tax exist at the same time and family tax should be prevailing. These two patterns can be chosen by taxpayer voluntarily. Referring to the methods in other countries and regions, the items and standard of expense deducting of individual income tax should be improved.

首先以税收的公平和效率理论为基础，结合税收扣除的法律原则，对费用扣除进行分析，为我国的费用扣除制度调整提供了理论依据及参考；其次，运用归纳比较的方法，对国外的费用扣除制度进行了分析介绍；再次，论证了我国现行个人所得税费用扣除制度存在的缺陷；最后，本文结合个税税制模式的改革，提出调整我国费用扣除制度的相关建议：实行混合制；选择家庭课税和个人课税并存的模式，以家庭课税为主，由纳税人纳税时自愿选择；参考国外的做法，完善个人所得税费用扣除项目及标准。

The others are Mucuna sempervirens,Parthenocissus trcuspidata,Wistaria sinensis Sweet in turn.According to the distinction of ecological functional of these four plants,the kind of plants which should be chosen under various ecological environment conditions or for different demands of ecological function of the plants were given.1. The most suitable plants for the area which get serious pollution such as factory,roadway and so on is Mucuna sempervirens.the other plant which more suitable is Rosa banksiae Ait.2. The most suitable plants for the hospital and the area for the children and the old is Mucuna sempervirens. And we can also select Parthenocissus trcuspidata.3. In the green area of modern enterprise that produce precision instrument,Rosa banksiae Ait is the best selection.4. Rosa banksiae Ait is the most suitable plants in resident green area. Planting Mixed with Mucuna sempervirens has better effectiveness.

以四种植物的生态功能性差异评价为依据，提出不同生态环境条件下和对植物不同的生态功能性要求的垂直绿化应选择的植物： 1 在道路、工厂等污染较严重的地区搞垂直绿化，最合适的植物是油麻藤，其次可选择木香； 2 医院及儿童、老人活动区的垂直绿化首选是油麻藤，其次是爬山虎； 3 生产精密仪器的现代企业绿地，垂直绿化植物选择以木香为首选，可结合大面积的爬山虎墙面绿化； 4 居住区绿地的垂直绿化植物选择以木香最符合要求，再以油麻藤进行混植，效果较好。

The traits selected were average daily gain after weaning and backfat thickness at 100 kg live weight. Breeding pigs were selected according to multiple-trait BLUP, and economic weight of BF was set as 2.5 times of that of ADG.

选择的性状为一般父系猪的选择性状，即断奶后生长速度和达100 kg体重时的活体背膘厚，利用多性状BLUP估计性状的育种值，选择指数中后一性状的经济加权系数是前一个的2.5倍，选择共进行了5个世代。

Although it is theoretically possible to allow a discrete, discontiguous selection—several disconnected paragraphs, for example—the user's task of visualizing the selections and avoiding inadvertent, unwanted operations on them is more trouble than it is worth.

尽管在理论上也可以进行离散且不连续的选择，比如选择多个不连续的段落。但使用者花费在选择上视觉工作，以及为了避免对选择无意识的不必要操作给用户任务带来的麻烦，远远超过了任务本身的价值。

The yarn change device for selecting a yarn at a location between a plurality of kinds of feeder packages of different color or the like and the feeder of a knitting machine and feeding the yarn to the feeder of the knitting machine while piecing the selected yarn and a yarn being knitted, comprises a suction means (28) for suction-holding a plurality of yarns collectively, and a clamp means (29) for clamping the plurality of yarns collectively at a location between the suction means and the feeder packages, wherein the clamp means comprises first and second clampers (29A, 29B) arranged at two positions along the thread handling area and operating selectively.

该纱线切换装置在颜色等不同的多种喂纱筒子和织机的喂纱装置之间选择纱线，并把被选择了的选择纱与织成中的织成纱进行接头，从而向织机的喂纱装置喂纱，具备：将多根纱线一并吸引而保持的吸引机构(28)、以及在上述吸引机构与上述喂纱筒子之间将多根纱线一并夹持的夹持机构(29)，上述夹持机构沿着纱线道而被配置成两处，包括选择地动作的第一夹持器(29A)和第二夹持器(29B)。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。