角

The P-wave velocity-depth profile and electrical conductivity-depth profile can be calculated from the experimental data and the fundamental geothermal parameters in northern margin of the North China craton. The comparison of the calculated results with the elastic and electrical structure of this area reveals that the v of amphibolite is approximately equal to the middle crust, the electrical conductivity of amphibolite intersects the range of the middle and lower crust in this area.

利用实验获得的弹性波纵波速度及其温度系数和压力系数以及电导率与温度的关系，结合现今华北克拉通地热学的基本参数，计算得到斜长角闪岩的弹性波纵波速度－深度剖面和电导率-深度剖面，将二者分别与华北克拉通北缘深部地壳的弹性及电性结构进行对比的结果表明：高温高压下绿泥石化斜长角闪岩的弹性波纵波速度与该地区中地壳速度相当，电导率介于中、下地壳范围内。

The expressions of dihedral angle and cutting angle of the intersecting groove are deduced by way of space analytical geometry.

利用空间解析几何原理推导了多管、板相贯坡口的两面角和实际切割角的表达式，建立了切割多管、板相贯坡口的数学模型。

The unique advantage of this halfanalytical numerical method is that the analytical process of Conformal Mapping can transform an irregular area into a regular one such as a rectangle. Therefore, the discretization error of numerical methods on the boundary can be avoided, and the numerical algorithm can be implemented more easily, with the computing efficiency improved.

这种保角变换的半解析数值方法的突出优点是：利用前期的保角变换解析处理将不规则的场域转化为规则的矩形域，从而避免了纯数值技术对复杂边界的离散化误差，降低了后期数值计算的算法复杂度，并提高了计算效率。

Experiments using the down-scaled vehicle prove that the static direct yaw moment control significantly reduces the side slip angle at the center of the gravity Also the experiment results indirectly show that the 2 degree of freedom vehicle model is rather accurate.

仿真实验表明集成控制系统可以使汽车在各种运行情况下质心处侧偏角很小的同时，有效跟踪理想横摆角速度响应。模型小车实验也证明静态横摆力矩控制可有效减小质心处的侧偏角，并间接证明二自由度汽车模型准确性。

In view of the feature of ball end milling process, the model of accurate cutting area is presented which considers the advance angle of cutting in and the lag angle of cutting off.

针对球头铣刀的切削特点，给出了考虑切入提前角和切出滞后角的精确切削区间模型。

The optimized exhaust lag angle and intake advance angle of the EQ6100 engine are calculated by means of alternated one dimension searching method vary with engine operating conditions.

采用轮流一维搜索法，计算出随EQ6 10 0发动机工况变化的优化的排气门延迟关闭角和进气门提前开启角。

The ignition delay period is controlled by the fuel injection advance angle which is an important parameter. If the advance angle of injection is adjusted earlier, the density of the combustion chamber is small and its temperature is low, when the fuel is injected into the combustion chamber. So it needs long time to atomization.

喷油提前角是影响燃烧滞燃期的重要参数，喷油提前角的大的工况，燃油喷入燃烧室时缸内空气的密度小，温度低，燃油雾化所需时间长，sauter平均直径大，油滴汽化的表面积越小，所以油束雾化效果不好。

The apparatus adopts the technique of one-chip computer,can set ignition advance angle at random rev of the engine at any time and assists the power test of the engine.The apparatus can survey and describe the best ignition advance angle curve of motorcycle engine and affords gist for the design of motorcycle engine and ignition control.

该仪器采用单片机技术，能够在任意发动机转速下设定任意点火提前角，配合发动机测功试验，可以快速测绘出摩托车发动机最佳点火提前角曲线，为发动机和点火器设计提供依据。

The angle of attack, pitch angle and velocity at shifted point for typical trajectory were calculated.

给出了两种控制方法的导引律，计算了典型弹道的攻角、俯仰角和交班点速度等参数。

For the key of vector- Distance algorithm , Curve fitting is used for the derivation of deviation angle algorithm, demonstrating the feasibility of deviation angle Algorithm and the error analysis.

针对矢量距离算法的关键，采用曲线拟合对计算偏离角的关系式进行了推导，论证了偏离角算法的可行性，对算法进行误差分析，用归纳的方法推导出计算磁短节中点与直井之间距离的关系式。

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。