查询词典 interference pattern

As a result, if the iridescence is produced by thin-film interference, not only the thickness of lamellar structure must be defined within a certain nanometer, but also the refractive index need to be different between lamellar structure. In other words, the chemical composition, refractive index and thickness of exsolution lamellae need form to trinity, such as labradorite, albite, andradite and orthoamphibole. If the iridescent color is produced by grating-diffraction, the lamellar structure just needs to be arrayed regularly, the spacing of the edges of lamellar structure needs to be regular and narrow, but not necessarily within the range of the wavelength of visible light, such as shell of abalone, pearl and opal.

薄膜干涉式晕彩不仅要求宝石内部结构层的厚度必须在一定的纳米范围内，而且结构层内部的折射率也必须有所差别，也即，当结构层由两相组分出溶而成，其化学成分、折射率和结构层厚度形成三位一体时，符合薄膜干涉式晕彩，如拉长石、钠长石、石榴石和角闪石；而光栅式衍射晕彩则仅要求结构层排列规则，边缘狭窄但不需要窄到可见光波长范围内，能使入射光的振幅或位相，或两者同时产生周期性空间调制的结构即可，如鲍贝壳、珍珠和欧泊。

The mutual interference problem between the components caused by the limitation of the intersection angle of the incident light beams and the dissymmetry of geometrical arrangement is solved by a data processing system composed of electronic mixer and data solver.

由电子混频和数据解算装置所组成的数据处理系统，解决了由于入射光束交角的限制及几何布置不对称性所造成的分量间相互干扰问题。

In this system, the gratings are inscribed by the UV interference fringes of 248 nm derived from a rotatable biprism, where the phase mask is used as a beam splitter, and the biprism is rotated to change the intersection angle of two beams.

在该系统中，光纤光栅是由来自可旋转双棱镜所形成的波长为248 nm的紫外干涉条纹写入的，其中，相位掩模被用作1级衍射光的分束器，通过双棱镜的旋转可改变两写入光束的交叉角。

According to the interference signal′s phase and light spot′s offset, the angular displacement is measured.

根据干涉信号的相位和光点偏移量可以计算出被测物体的角位移。

On the basis of autocollimation principle,combining with grating interference principle, a new autocollimation interferometry method was put forward which can measure three-dimensional angular distortion.

以自准直原理基础，将光栅干涉原理引入，提出了一种能对船体三维变形测量的自准直干涉法。

Based on the relations of the diffraction field and the surface wave, which conclude diffraction factor and interference factor, some relations were conformed such as: the diffraction fringes spatial distribution versus surface wavelength, the fringes half angular width versus the numbers of surface wave covered by laser spots and incidence angle, diffraction intensity versus surface wave amplitude.

通过对衍射因子和干涉因子的分析，得到衍射条纹空间分布与表面波波长的关系、条纹的半角宽度与入射激光光斑覆盖表面波的个数和入射方向的关系、衍射光强度与表面波振幅的关系，并解释了条纹缺级现象。

Finally, applications of the anomalous propagation of microwave in tropospheric ducts are discussed: in connection with concrete radar parameters, effects of ducts on radar range and detection performance are discussed, the results obtained are of great value for the overall design of radar systems; by use of the interference standards of ITU-R, the co-ordination area of satellite earth-station under tropospheric ducts environment is studied ; by explaining the relationship between evaporation duct and advection fog, a new way to forecast sea advection fog from evaporation duct is provided.

最后讨论了对流层大气波导环境下电波异常传播特性的应用：结合具体的雷达系统参数，模拟计算了大气波导对雷达作用距离及发现概率的影响，对雷达系统的总体设计具有重要的参考价值；对表面大气波导环境下的卫星地球站通信协调区域进行了确定，从理论上很好地给出了协调距离量级的概念，为卫星地球站与地面微波站之间的协调提供了依据和参考；分析了利用海面蒸发波导来快速预测平流海雾的新方法，完善了平流海雾的预报方法，对海上安全作业和生产具有重要的意义。

ABSTRACT:Objective To explore the interference and effect of antenatal care on the increase of body mass index .

目的 探讨定期产检对孕妇体质指数增长的干预及对妊娠结局的影响。

It has to be small so that the electrical runs do not act like antennae and pick up the magical interference.

它必须很小，才能使电力装置不能起到天线的作用，接受不到魔法干扰。

The aim was to discuss the effect of fungicide interference on temporal and spatial niches of mango anthracnose.

［目的］探讨药剂干扰对芒果炭疽病时间和空间生态位的影响。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。