角

Cografts point in general there are two: vertical tool grinder mill out of an arc-shaped blade angle, as in Figure 2 illustrated horizontal grinder mill out of cografts is straight, as in Figure 2 is shown below.

刃角通常情况下有两种：用立式磨刀机磨出的弧线型刃角，如图2所示；用卧式磨床磨出的刃角为直线型，如图2所示。

According to swinging the angle change of leg joint, hipjoint corner change in start stage withdraw knee stage start to have a prominent crestthe end curve, the overall range that increases is 14.3°士 5.0°;According to anglechange of knee joint , swing leg minimum knee corner average 84.3°士 7.6° withdrawknee.

从摆动腿关节角变化来看，髋关节角变化曲线在启动阶段末提膝阶段始有一个显著的波峰，总体增大的幅度为14.3o士5.0o；从膝关节角度变化来看，摆动腿提膝时最小膝角平均值为84.3°士7.6o。

The paper explains the basic operation of the new type of GPS 72, and emphasizes its application in forestry survey and planning and the use method of its interface setting, parameter setting, known coordinate storage, current place coordinate storage, spot navigation, primary navigation, area survey and declination survey.

在叙说新型GPS72基本操作的同时，重点介绍了该机在林业调查规划中的应用，以及该机型的界面设置、参数设置、存储已知坐标、存储现地坐标、单点导航、航线导航、面积测量和罗偏角(指罗盘仪所测方位角与公里网坐标方位角的差)测算等的使用方法。

In partial celestial sphere celestial Star-Identification, the initial attitude is known. With a certain angular and distance tolerance, the separation angle of the observed stars and that of the catalog stars are matched, then, the star triangles are composed in real time. According to the rules of vector rotation, the inconsistent rotation star triangles are removed. After that, put the star triangles with public vertex into star polygon.

在局部天球星图识别方面，因为已知初始姿态，在一定角距容差和星对容差范围内和已知视轴附近的导航星角距表进行角距匹配，实时组成星三角，根据矢量法则剔除旋转方向不一致的星三角后，再把拥有公共顶点的星三角组合成星多边形。

Kuehl's triangle Star-Identification, some improvement had made. With a certain angular and distance tolerance, the separation angle of the observed stars and that of the catalog stars are matched, then, the star triangles are composed in real time. According to the rules of vector rotation, the inconsistent rotation star triangles are removed. After that, put the star triangles with public vertex into star polygon.

Kuehl的三角形星图识别的基础上进行了改进，即在一定角距容差和星对容差范围内和整个导航星角距表进行角距匹配，实时组成星三角，根据矢量法则剔除旋转方向不一致的星三角，把拥有公共顶点的星三角组合成星多边形。

The relation between the best Injection Timing and the speed is analyzed, the influence factors about Spark Advance and Spark Close"s in different work conditions are studied, and the relation between Spark Advance and engine"s knocking is found.

论文还分析了最佳喷油时刻与发动机转速的关系，研究了点火提前角和闭合角在发动机不同工况下的影响因素，找出了点火提前角与发动机爆震之间的关系。

In order to find a way of spark timing intellectual control on automotive gasoline engine,the relation between a CS492Q gasoline engine performance and the spark advance angle is obtained by engine bench test,and a fuzzy controller which controls spark timing is proposed.

为探索车用汽油机点火智能控制的有效方法，对 CS492 Q汽油机进行台架实验，在得到汽油机性能与点火提前角关系的基础上，以汽油机曲轴转速变化量和转速相对于点火提前角增量的变化率为模糊输入量，点火提前角增量为模糊输出量，建立模糊控制器，对汽油机点火正时进行模糊控制仿真。

Chirp scaling algorithm is considered more efficient and widely applicable when the bistatic SAR system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by Taylor expansion are so large that the algorithm could lose its precision.In such a case,an equivalent mono-static SAR range mode which has fewer errors than Taylor expansion with large squint angle is proposed to substitute the range history of bistatic SAR.Then bistatic SAR images with large squint angles are gotten by common Nonlinear CS algorithm.The effectivity of the method is verified by Matlab simulation.

在正侧视或小斜视情况下，CS算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性CS算法，实现了在大斜视角情况下的基于GPS反射信号的双基地SAR高精度成像，最后通过Matlab仿真进行了验证。

a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要：建立了基于gps的顺轨sar系统模型，通过将gps信号等效为chirp信号，研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下，cs算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性cs算法，实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像，最后通过matlab仿真进行了验证。

Biomechanics feature of should joint at the empty out and transition moment was analyzed, including the angle between shoulder and hip, angle of pull, angle of axis between shoulder, the speed of left shoulder, the speed of right shoulder and so on from the instant of leaving of the left foot to the instant of touchdown of the left foot.

再采用爱捷运动录像快速反馈分析系统，进行图像采样和数据计算，获取生物力学指标，重点分析腾空和过渡阶段肩关节的生物力学特点，包括左脚离地瞬间至左脚着地瞬间肩髋角、拉引角、肩轴角、左肩速、右肩速等指标。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。