次轴

The lineshape of the spectrum is determined by the function sinc and the spantaneous emission is elliptically polarized only when γ is very large or observed on axis.

数值分析表明：在平面摆动器中附加适当的轴向磁场，可以提高各次谐波辐射的强度，对于基波和较低次谐波，提高更明显。

The refraction, reflection and propagation of the acoustic wave in a rod are studied quantitatively when a line-focused probe is employed in an axial scanning in immersion testing. The shape and position of the first and second focal line of the probe in the cylinder are calculated.

定量研究了采用线聚焦探头、液浸法、轴向扫描探伤时，棒材中声波的折射、反射和传播规律，计算得到了工件中的一次焦线和二次焦线的形状和位置。

Based on the single-axis air-bearing test bed, three experiment schemes are creatively designed for investigating the behaviors of rigid-flexible coupling dynamics:(1) experiment scheme for structural dynamics problem under a non-inertial frame,(2) experiment scheme for rigid-flexible coupling dynamics with unknown large overall motions,(3) experiment scheme for modal analysis of a typical rigid-flexible coupling system.

为了能更深入地揭示刚柔耦合动力学特性与验证本文提出的一次近似模型的正确性，最后重点介绍了我们在单轴气浮台动力学仿真实验平台基础上，经过多次探索和总结，创造性地设计的三套刚柔耦合动力学实验方案：(1)非惯性系下结构动力学问题的实验研究方案，(2)大范围运动为自由的刚柔耦合动力学问题的实验研究方案，(3)刚柔耦合系统模态分析实验方案。这三套方案从实验的角度来讲是可行的，这为下一步的实验工作打下了基础。

Pistillate flower: tepals 2-5(-10); pistil composed of 2-5(-7) carpels; ovary inferior, 1-3(-7)-loculed; placentae axile or parietal; styles 2 or 3, free or fused at base, forked once or more; stigma turgid, spirally twisted-tortuous or U-shaped, capitate or reniform, setose-papillose.

雌花 花被片2-5(-10)；由2-5(-7)心皮组成的雌蕊；子房下位，1-3室(-7)；中轴胎座或周壁；花柱2或3，离生或者在基部合生，分叉一次或更多次；柱头膨大，螺旋缠绕扭曲或U形，头状或肾形，具刚毛小乳突。

By the time the crankshaft completes two revolutions, each cylinder in the engine will have gone through one power stroke.

此时，机轴完成两次旋转，在发动机里的每一个气缸都会有一次撞击。

If you record more than three runs, use the DATA menu along the vertical axis to select the runs you want to see.

如果你记录了三次以上的试验，可使用竖轴旁边的数据菜单，来选择你想看到的那次试验。

And by using the initial conditions as well as the end conditions, the dynamic problem is then transferred to a second kind Volterra integral equation about the function of the axial strain with respect to time which can also be solved successfully by the interpolation method. For piezoelectric and pyroelectric hollow cylinders, by following the solving procedure for elastic hollow cylinder and by using the electric boundary conditions, the dynamic problems are transferred to two Volterra integral equations about two functions of time, one is axial strain and the other is related to electric displacement, which can also be solved efficiently and quickly by employing interpolation method. The elastodynamic solutions of hollow spheres, which are made of elastic, piezoelectric and pyroelectric materials, respectively, for spherically symmetric problems are also obtained.

对于弹性空心圆柱，通过引入一特定函数将非齐次边界条件化为齐次边界条件，然后利用正交展开技术，导出关于时间函数的方程，再结合初始条件和端部边界条件，将原问题转化为关于一个时间函数的第二类Volterra积分方程，运用插值法可给出此积分方程的解；对于压电和热释电空心圆柱，利用求解弹性空心圆柱相似的方法，再结合电学边界条件，原问题转化为关于两个时间函数（轴向应变和与电位移有关的函数）的第二类Volterra积分方程组，同样可用插值法来构造相应的递推公式高效地求解此积分方程组。

Mainly research results were as follows:(1)Proper scanning conditions which were used for establishing NIRS nondestructive detecting models were confirmed.The results of test indicated that proper scanning times was 1 times to one point;proper scanning manner was 2 times by 180°running to several points; the enactment of scanning parameters simply satisfied the condition that the spectral line of samples and the spectral line of contrast were tangent in conquest line;it can obtain the greatest prediction performance with the spectral data which were determined in an aphotic room absolutely.

具体的研究结果如下：(1)南果梨近红外透射光谱的适宜扫描方式为以果柄-果蒂为轴1 80°转动扫描2次、适宜的光谱扫描次数为单测点扫描一次、扫描参数的设定只要满足待测样品光谱曲线和参照物光谱曲线均在特征峰处相切于征服线即可，光谱测定的最佳环境条件为在完全遮光的房间内进行样品光谱的采集。

The interface and concrete operations of the prototype system and results of machining features recognition are illustrated by examples, in which there is a typical shaft, a 2.5D part without conicoid and a 2.5D part with conicoid.

分别以一个典型的轴类零件，一个不具有二次曲面的2.5维零件，以及一个具有二次曲面的2.5维零件为例，介绍了原型系统的界面和加工特征识别的具体过程及识别的最终结果。

During the total eclipse of Epsilon Aur, 18 and 6 spectra in the Hα region were taken in rapid succession on March 9 and 10, 1983 respectively by use of the Beticon at the Coude focus of the McDonald Observatory 2m telescope.

用美国麦克唐纳2.7米望远镜折轴分光仪的Reticon对H_α附近光谱区进行连续18次(3月9日)和6次(3月10日)观测，用计算机绘图和处理，得到了金属线的视向速度，H_α线的轮廓、视向速度、等值宽度的短时标变化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。