共

In order to analyze the effect of structure of hypereutectic Al-Si alloy on its machinability, the cutting test to two hypereutectic Al-Si alloys which have the same chemical composition but different structures is made and their cutting mechanism is studied.

为分析过共晶铝硅合金组织对其切削加工性能的影响，对两种化学成分相同但是组织结构不同的过共晶铝硅合金进行了切削试验研究并探讨了其切削机理。

The formation position and growth direction of the segregation during the horizontal solidification of NH4Cl-H2O with hypoeutectic and hypereutectic compositions are numerically studied based on the experiment.

在实验验证的基础上，对亚共晶与过共晶成分的NH4Cl-H2O侧向凝固通道偏析的形成位置与生长方向进行了数值模拟研究。

The difficult when be being overcome in all, it is everybody is not oppugned, do not criticize, do not criticize severely, do not touch those central issues that pose a contention possibly and difficult point, lest controversy and criticism can give government and leader incommode, meeting influence public is right governmental confidence -- package of this kind of thought on the back, speak of a word to come, mention the proposal comes before be afraid of tiger of wolf fear after the event, for fear that is censured " the difficult when be not being overcome in all ".

共克时艰，就是大家都不质疑、不批评、不苛责，不碰那些可能引起争论的焦点和难点，免得争论和批评会给政府和领导添麻烦，会影响公众对政府的信心——背上这种思想包袱，说起话来、提起建议来就前怕狼后怕虎了，生怕被指责"不共克时艰"。

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上，首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选，然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选，在筛选过程中考虑到预报时限长度和轨道摄动影响，引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求，利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性，从而显著地提高了前期轨道筛选的计算效率；最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点，并根据预报计算结果，分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近，推出预计最小相对距离发生时刻相对此刻的时间长度，得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度，这是一个采用变时间步长、快速逼近最小相对距离的过程。

ITAT's alliance with landlords and suppliers avoids infelicitous of middle mess and reduce operating costs.

ITAT集团创新的商业模式真正做到把生产厂家的缝纫机搬到销售柜台，减少了中间流通环节，降低营运成本，名副其实做到服装百货交易所，为消费者带来最大的实惠，在全球范围内率先建立了独特的"多方合作、风险共担、利润共赢"创新商业模式。

We first analyze the relationship between the characteris-tic subspaces of linear transformation A,and its conjuge transformation A*, on then-dimensional complex inner product space Cn, and prove that the characteristicsubspace of an enginvalueλof A is orthogonal to that of enginvalue μ of A* if λ≠μ.

首先，分析n-维复内积空间Cn上的线性变换A与其共轭变换A*的特征子空间之间的关系，证明出只要A的一个特征值λ与A*的一个特征值μ的共轭不同，那么它们对应的特征子空间是正交的。

Input offset voltage, input bias current, and even CMR may be quite GOOD over PART of the common-mode range , but much worse in the region where operation shifts between the NPN and PNP devices.

在各自的共模范围内，输入失调电压、输入偏置电流甚至共模抑制CMR也许都十分的好，但在NPN元件和PNP元件间的工作交替的区域却更坏。

It is this puzzle consciousness that alter the position of the artist in the creation process, cause the relationship between us and the object demonstrates properties such as intercommunity, symbiosis and complicity rather than just dualism.

正是问题意识改变了艺术创作的主体性，因为我们和对象的关系，有问题的共同性、共生性和共犯性，不可能再是主客体二元分离的。

To overcome these disadvantages, the structure of traditional CPW was modified and a novel interdigital CPW was designed in this paper.

针对这些不足之处，本文对传统共面波导结构进行改进，设计了改良型的叉指式共面波导结构。

By model 4 (letting both PEO and POM well crystallize) and model 5 (decreasing temperature at a rate of 10°C/min), when PEO content is 5%, the blend forms amorphous PEO existing among POM lamellae. When PEO content is 10%, the blend forms interfibrillar segregation crystalline structure.

在所有降温模式的共混物中，当PEO含量为5％，降温模式4时共混物的综合力学性能最优，原因是此时形成了无定形PEO存在于POM球晶微纤晶间的结晶结构，且POM的结晶度最大。7。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。