单射

We also calculate the spectra of the cavity field numerically via the eigenvalues and the eigenvectors of the mazer master equation for the case with the number of atoms from one to four.

通过求解主方程系数矩阵的本征值与本征矢，我们计算了入射原子团中包含一到四个原子时腔场的光谱与平均光子数，其中着重对单原子与二原子的数值结果作了讨论。

Several high speed signal processing technologies of wideband digital receivers,including monbit IFM technology,polyphase channelized technology,channelized digital receiver based on FFT and RF bandpass sampling microwave digital receiver,are discussed in detail.

详细讨论了宽带数字接收机的几种高速信号处理技术，包括单比特瞬时测频技术、多相滤波信道化技术、基于FFT的信道化接收机和射频带通采样微波数字接收机，最后提出了在宽带中频数字接收机高速信号处理领域需要深入研究的有关技术。

The results show that the spectra of chuster atoms and the recoil target atomsare broader for the cluster bombardment than those for the monatomic bombardment withthe same incident velocity.

结果表明，与单原子注入比较，原子簇轰击后注入原子的能谱和靶原子的能谱加宽，并有部分簇原子的能量高于它的入射能量。

Ray diffraction analysis displays that Major phases present in the sintered bodies were the BaTiO3 compounds with a perovskite structure and the BaBiO3 compounds with a monoclinal structure.

射线衍射分析表明烧结体中的相由钙钛矿结构的Ba- TiO3和单斜结构的BaBiO3组成。利用扫描电镜分析了样品的断面形貌，能谱确定了样品中相的分布规律。

Wave equations, which were derivate from the stiffness Matrix of anisotropy monocline symmetry system, may meet different azimuth modeling of 2-D finite difference.

从各向异性单斜对称系统的刚性矩阵推导出的波动方程，可以满足EDA介质模型不同方位角入射的二维差分模拟要求。

It is proved that ① Let R be right AGP-injective and right P-V'-ring, then R is left nonsingular ring.

若R是右非奇异的，右有限Goldie维数的右AGP-内射环，则R是半单Artin的。

We found that during the growth process the double steps first grow separately and the connected by short bridge before tangential growth. After eighth or ninth layer the spiral steps would merge into intact elliptic layers. At the merging point right-handed spiral sources might appear but the left ones always overgrow it which made the whole growth topography looked like left-handed apparently. It indicated that the EAFP molecules has strong ability to adjust itself to adapt the environment. 5. Through various analysis of interactions in the EAFP crystals it indicated that there were 218 residue interactions between 12 symmetry-related EAFP molecules around one EAFP molecule, 18 strong ones and 72 weak ones .

EAFP在低过饱和度下的螺旋生长过程中会出现台阶的合并，从而表现出单-双的螺旋台阶，在小范围扫描中捕获到了这种现象，使得对螺旋生长台阶的合并过程有了更加深入的认识；并且台阶的生长受到沿晶体学b轴方向上的21螺旋对称的控制；当台阶生长至第八到第九层时，螺旋台阶会自动地形成完整的生长层，这充分说明了EAFP分子或分子簇具有良好的自身调节能力，这样在晶体生长过程中，晶体的缺陷减少，晶体质量提高，这也可说明EAFP晶体的x射线衍射能力很强的原因。

Chapter 2: The vectorial properties of the paraxial beams propagating perpendicular to the optical axis of a uniaxially anisotropic crystal are investigated.

第二章：研究了垂直光轴入射的傍轴光束在单轴晶体中传输的矢量性质。

The techniques of optical beam induced current have found wide-spread applications in characterizing many semiconductor and optoelectronic devices. A two-photon confocal microscope is adapted for investigating the dynamics of light emitting devices through the contrast mechanisms of two-photon DC and radio frequency optical beam induced current.

摘要 光致电流的技术至今已经广泛的被应用在检测半导体特性以及光学元件上，共焦显微镜搭配双光子激发技术相当适合用来检测LED元件，与单光子激发相较之下，利用脉冲雷射双光子激发术可以使用光子能量小於能隙的长波长光源来完成激发，并且具有高度的空间解析度。

This work discusses and compares the methods of deriving the Rutherford scattering formula,and analyses the Rutherford scattering in the low energy(e,2e) reactions through the study on electron impact ionization of helium.

讨论和比较了用不同理论方法导出卢瑟福散射公式；分析了低能电子入射单电离氦原子(e，2e)反应中的卢瑟福散射；尤其是通过卢瑟福公式给出了有效核电荷的表达式。

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。