角函数

The differential cross section, the polarisation and the spin-rotationparameter in elastic scattering of 180 MeV antiproton by 12C are calculated by means ofGlauber s multiple scattering theory and Pauli-correlated wavefunction .

在Glauber多重散射理论近似下，采用泡里关联的核波函数，使用一种唯象的湮灭势，对180MeV的在12C上的弹性散射微分截面，极化角分布和自旋旋转参数进行了计算。

Our results demonstrate that the symmetric and asymmetric variations above the incident azimuths appear on the radial and transverse components of the receiver function, respectively.

结果表明，当台站下方存在倾向一致的倾斜界面时，远震体波接收函数的径向分量和切向分量分别随震源方位角的变化呈现对称和反对称的规律性变化。

The growth functions of the plant root systems were used to control the increase of the length of internodes and branching axis and the increase of the branching angles.

生长函数用于控制内节点的长度、分枝根的长度和分枝角的增加。

Wideangle parabolic approximations to wave equation usually lead to nonconstant differential migrators with their coefficients varying with lateral velocity variations, and hence require a finitedifference numerical implementation.

波动方程宽角抛物逼近得到的通常是非常系数的单程波传播算子，其系数是速度横向变化的函数，因此需要利用有限差分进行数值实施。

The resonator stability of multimode laser is the same as the fundamental's.

多模激光器的输出光束发散角是泵浦功率及几何腔参数的函数。

In order to solve this problem, a control strategy is developed. A control algorithm to suppress negative sequence current through ASVG caused by slight asymmetry of system is also developed based on the modeling method in function of switchings and the definition of instantaneous negative sequence voltage. The ASVG can generate a negative sequence voltage component against that in the system while it generating positive sequence voltage with this algorithm.

在系统轻度不对称时，本文提出了通过控制ASVG触发脉冲使其产生与系统电压负序分量大小和相角完全相同的负序电压以抵消系统电压负序分量，从而抑制ASVG负序电流的方法，并用&开关函数&建模法给出了具体的控制算法。

The results show that, the chloride concentrations and diffusion coefficients are both a one-humped function of elevations (can also be the time scale of seawater infiltration), they increase with the increase of elevation until they get to the peak value, and then decrease with the increase of elevation; an evident relationship is being between the surface chloride concentrations and the wave forces acted on the concrete surface, while there is no much difference among the diffusion coefficients; the diffusion coefficients get to bigger as the depth from the concrete surface increase in the influence of the capillary structures evolution and chloride concentration, but this tendency of change was alleviated with the increase of depth.

研究结果表明：氯离子侵蚀混凝土设施的竖向分布规律为氯离子浓度、扩散系数与标高之间同为单峰函数分布，先随高程变大而变大，达到峰值后，随高程变大而减小；氯离子侵蚀混凝土设施的环向分布规律为混凝土构件表面氯离子浓度、氯离子通量与波浪力之间有明显的对应关系，波浪力越大，则表面氯离子浓度和氯离子通量越高，而扩散系数在各方位角差别不明显；由于混凝土长期服役过程中内部毛细孔隙结构演化以及氯离子浓度的影响，氯离子扩散系数随混凝土深度变大而变大，但这种变化趋势随深度逐渐趋缓。

Constructing model apparatus system of bell-like suction box, the outlet section velocity distribution was measured by probe under various suction open heights.

以流道出口速度均匀度、速度加权平均角、水力损失大小为评价目标函数，研究了钟形进水流道不同喇叭口悬空高度的内流场特征和水力损失特性，提出了喇叭口悬空高度的合理取值范围。

For unexploded ordnances, the four dimensional unexploded ordnance scattering function of slant range, azimuth, frequency and aspect angle is firstly estimated via the SWD. Secondly, the amplitude information of the multi-aspect feature in different frequencies is extracted, and the spatial distribution information of multi-aspect feature in different frequencies is quantitative described using the Hu moment invariants further.

对于未爆物目标，首先利用SWD得到未爆物斜距-方位-频率-方位角四维散射函数估计，然后在提取了不同频率下的多方位特征幅度信息的基础上，利用Hu不变矩进一步定量描述未爆物不同频率下的多方位特征空间分布信息。

After the relation between the torsion moment and the torsion angle, then the relation between the compliance of the loading system and the crack length are obtained, the compliance method has been used to obtain the energy release rate, and from that the stress intensity factor has been obtained.

通过求解弹性力学的夹层截面扭转问题进行应力分析，求得试件的扭矩和扭转角的关系以及加载系统的柔度C和裂纹长度a的函数关系，再用柔度法求得能量释放率，最后由能量释放率G求得应力强度因子K。

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。