查询词典 cylindrical

The propagation modes in the lenslike medium , including the spot size, field distribution pattern and their propagation constant,are obtained by solving the Helmholtz equation in the cylindrical coordinate.

从求解柱坐标内亥姆霍兹方程出发，导出了类透镜介质传导模的特征参量、场分布状态及传播常数，求出了入射激光束和导模之间的耦合系数，并讨论了它们的物理意义。

Curly --Compact, cylindrical curls, somewhat lusterless. The hair on the ears is sometimes wavy.

卷毛型：毛发紧密，呈柱状卷曲，略显黯淡，耳朵的毛发有时是波浪状的。

Long, cylindrical, multinucleate cells.

长圆柱形，多核，位于肌膜下，无分支，有横纹。

Shrubby tree with silky foliage and spikes of cylindrical yellow nectarous flowers.

有丝滑树叶和穗的灌木树，有圆柱形的黄色的甘美的花。

In the buckling question under nonconservation force,a simply example( the dynamic stability question under the uniformly follower forces with small deformation % linear elastic, straight normal.) is considered.The variational equation of braid composite cylindrical shells subjectd to uniformly follower forces is deduced based on the variation principle of quasinatural frequency of elastic nonconservative system self-excited vibration.The calculated formulas of the flutter load and quasinatural frequency of shells are obtained. The program for calculating the flutter load is developed.The numerical example is given and some useful conclusions are obtained.

对非保守力作用下的屈曲问题，具体研究了圆柱壳在比较简单的情况，即小变形、线弹性、直法线假设下在随动力作用下的壳屈曲问题，由拟固有频率变分原理推出了圆柱壳受随从力作用的变分方程，得到了颤振载荷与壳弯曲的固有频率的计算公式，编制了相应的计算机程序，并给出了具体算例，得到了一些有益的结论。

Through solving the nondivergent inviscid linear vorticity equation in cylindrical coordination of barotropic atmosphere with WKBJ method, the authors point out that one kind of wave, named vortex Rossby wave, which is similar to planetary wave, exists in hurricane, its formation is due to the gradient of vertical vorticity component of basic state.

作者中文名：钟科；康建伟；余清平摘要：文中从柱坐标系下的正压无辐散涡度方程出发，用WKBJ方法求解方程，发现在飓风中存在类似于行星罗斯贝波的涡旋罗斯贝波，这种波的形成主要是由于飓风中基态涡度垂直分量的径向梯度所决定。

The radial force balance equation for the self-electric field and self- magnetic field of the relativistic electron beam is used to calculate the angular rotation frequency of the relativistic electron beam propagating through the cylindrical wave guide filled with nonneutral plasmas.

首先利用相对论电子束的自电场与自磁场所产生的径向力平衡方程，计算出相对论电子束在稳态非中性等离子体填充的柱状波导中传输的转动频率。

Based on the propagation and transformation law of Wigner distribution function through a general axially nonsymmetrical optical system,investigated is the transform relationship of WDF between the input and the output planes of a pair of cylindrical lenses system which is used widely in optical signal processing .

基于维格纳分布函数在一般非轴对称系统的传播和变换规律，讨论了在光学信息处理系统中常用的双柱透镜系统输入和输出面WDF之间的变换关系，在直角坐标中给出了联系该系统相空间坐标的维格纳分布函数的坐标变换关系式和等价的矩阵表示。

Inflorescence spikelike, cylindrical, composed of spiny or bristly deciduous burrs arranged along an angular, often sinuous rachis; burrs sessile or with an obconical basal stipe, each composed of 1 or more sessile spikelets surrounded by an involucre of spines and bristles; bristles flexuous or more often spinous,± flattened, grooved on the outer face, united below, the degree of union varying from a small basal disk to a deep cupule, inner spines or bristles often ciliate around spikelets. Spikelets lanceolate, acute; glumes unequal, shorter than spikelet, lower sometimes suppressed; lower floret membranous, staminate or neuter; upper floret firmer, protogynous.

花序穗状，圆筒状，由落叶的毛刺沿着一具角安排的具刺的或具刚毛，通常波状的轴组成；毛刺无梗或具基部的倒锥状柄，每一个由1无梗或更多组成以总苞的刺和刚毛包围；或更多的刚毛曲折通常spinous，多少扁平，在外面上具凹槽，下面的合生，协会的度从一小的基部的花盘变化到一深的壳斗，小穗披针形，锐尖；不等长的颖片，短于小穗，降低有时压抑；更低的小花膜质，雄蕊花的或中性；坚定的上面小花，雌蕊先熟。

Any of numerous scaly, legless, sometimes venomous reptiles of the suborder Serpentes or Ophidia, having a long, tapering, cylindrical body and found in most tropical and temperate regions.

蛇：蛇亚目众多的有鳞、无足，有时有毒的爬行动物，体长、前尖、呈圆状，在大多数热带或温带地区都有出没

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。