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The kinematics of precision centrifuge isanalyzed in Chapter 2 adopting Homogeneous transformation and vector analysis.The calculating formulae of centripetal acceleration generated by precision centrifugeand acceleration acting on input axis, output axis and pendulous axis of accelerometerare deduced in theory under various conditions.

论文第2章首先用齐次变换法和矢量分析法对精密离心机的运动学进行了分析，从理论上推导出离心机产生的向心加速度的计算公式，以及各种条件下作用在加速度计输入轴、输出轴和摆轴上的加速度。

Another MCU, 89C2051 is used to realize the control of the three rows LED monitor showing coordinates of axis X and Z axis and other state of the system. Charnel A and C of 8155 are used for editor keyboard, which make the inputting or editing of the NC code and data possible. Charnel P1 of 8031 is used for the operation keyboard such as system power on/off and movement of axis X or Z. a programmable parallel I/O chip, 8255, is used to achieve system I/O and the transmission of other information. In summarize, the system developed is characterized by its simplicity, low development cost and high reliability.

在CPU存储器扩展电路设计中， CPU选用MCS-51系列的8031单片机，外扩32K的程序存储器和 8K的数据存储器，分别用于存放系统管理程序、数控加工程序以及运算数据；在显示电路设计中，选用MCS-51系列的89C2051单片机作为从CPU，控制三排LED显示器，用于X轴、Z轴动态坐标以及相关数字的动态显示；在手动键盘和编辑键盘设计中选用8155芯片的PA口和PC口作为行、列母线，扩展矩阵式编辑键盘，用于程序和数据的输入或编辑，同时选用8031单片机的P1口扩展手动键盘，用于系统启动、停止以及运动部件在X、Z轴方向的手动控制；在I/O口扩展电路设计中选用8255芯片扩展输入输出口，用于接收和传送开关量及相关信息。

Based on existing creep theory and the spline function collocation point method, a numerical method was developed to calculate the transient creep strain and stress of a rotor of steam turbine to be aligned.

以往由于缺乏转子钢在直轴温度范围内的蠕变特性实验数据以及对大轴温度场、应力场和应变场的深入理论分析，直轴工艺还带有较大的经验性。

Run smooth, safe and reliable: the motor shaft and pump shaft for coaxial Direct, high concentricity, run smooth, safe and reliable.

运行平稳，安全可靠：电机轴和水泵轴为同轴直联、同心度高，运行平稳，安全可靠。

Correction coupling centerline, the motor shaft and pump shaft to maintain concentricity.

校正联轴器的中心线，使电机轴与泵轴保持同心。

Both the a-axis and ab-plane dip towards the downstream , the dip angles of the a-axis are low and concentrated, being 7—8°,the ab-plane dips at 7～21°, and the a-axis has more preferred dip of fabrics than the ab-plane; the peak of the grain-size frequency distribution curve of deposits in the Lushan area is in the range of 4 and 5 φ;The quartz sand grains are subangular and have well-developed conchoidal fractures, parallel striatio ns, upturned cleavage flakes,"V"-shaped holes and siliceous deposits.

摘 要：庐山第四纪泥砾沉积物的砾石组构特征表明，砾石岩性与山体基岩基本一致，砾石的等体积球径较小，加权平均砾径较中值砾径大，分选系数大于1，分选性差，φ值相对较小，平均为0.66，F值相对较大，在2左右，F/φ比值介于2.75～4.75，ρ值集中且较小，为22.75%～37.75%，砾石以棱角、次棱角状为主，磨圆较差；a轴和ab面都倾向沟谷下游，a轴倾角集中且较小，为7～8°，ab面倾角为7～21°，a轴较ab面具有更为优势的组构倾向；沉积物粒度频率曲线在4～5Φ范围内表现为峰；石英砂颗粒为次棱角状，贝壳状断口发育，具平行擦痕、上翻解理片、V形坑和硅质沉淀。

Secondly, in our methods, the essential geometry of the image single axis geometry may be specified by six parameters and this may be estimated from one conic and one fundamental matrix (a total of 12 parameters) or may be minimally estimated from two conics (a total of 10 parameters).

本文证明了单轴旋转运动的不变量可以通过一个基本矩阵和一条二次曲线来确定，在这种情况下，由于基本矩阵的自由度为7，二次曲线的自由度为5，所需确定的参量个数仅为12，大大减少了不变量的计算量；本文同时证明单轴旋转运动的不变量可以通过最少两条二次曲线来确定，在这种情况下所需确定的参量个数仅为10，该方法是目前同类算法中参数最少的；本文提出了用多条二次曲线求解单轴旋转运动的不变量的最大似然估计算法，其所需确定的参量个数为6+2n，其中n为二次曲线的个数，该公式更深刻地反映了二次曲线与不变量的参数关系。

In this coordinate space the X axis points right, Y points up and Z points away from camera.

在这个坐标系中，x轴指向右边，y轴指向上边，z轴指向相机前方。

Second, the design, and static and modal analysis of the crankshaft and counterbalance shaft are presented.

再次，对发动机曲轴和平衡轴进行了设计和分析，应用有限元法对曲轴及平衡轴进行了静力学和模态计算与分析，结果表明所设计的曲轴及平衡轴满足设计要求。

Selects the high quality raw material to make high-level Gao Xinsi, low zinc silk, product specification: 0.70mm--0.20mm Gao Xinsi is the plate attire, 0.20mm--0.13MM Gao Xinsi reel attire, 0.70mm--the 0.20mm low zinc silk is the plate attire, 0.20mm--the 0.13mm low zinc silk is the reel attire, Gao Xinsi the 0.70MM quality is specially good, on the zinc quantity amounts to 50 grams, pulls out the silk is specially dazzlingly bright, clean ball silk brightness is high, silk number entire, attaches few, does not have the crankpin, and guaranteed that the quality is best in the similar products, the price is most reasonable, to sells the ball silk to implement three package, is responsible.

选用优质原料制成高级高锌丝，低锌丝，产品规格：0.70mm--0.20mm高锌丝是盘装，0.20mm--0.13MM高锌丝线轴装，0.70mm--0.20mm低锌丝是盘装，0.20mm--0.13mm低锌丝是线轴装，高锌丝0.70MM质量特别好，上锌量达到50克，拉出的丝特别白亮，清洁球丝亮度高，丝号全，接头少，无偏轴，并保证在同类产品中质量最好，价格最合理，对所售球丝实行三包，负责到底。欢迎广大用户来电来厂洽谈业务，我们将为你提供最优质的服务。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。