出射的

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 results of theoretical analysis and experiments indicate that in the frequency band of 10 to 3 000 MHz and voltage range of 0.1 to 2 V,the uncertainty is 0.25% to 0.7% and the confidence level is 99.73%. Metrology ; Voltage standard ; Bolovac ; Thin film bolometric bridge with resistance regulation network circuit ; Double thin film bolometer ; RF mount ; Uncertainty evaluation

在近期的技术改造[2]中，我们研制出电阻臂可变的自动平衡电桥，重新研制了双薄膜测热电阻，建立了射频电压自动校准系统，从而使该基准的计量性能有了很大提高，其主要技术指标如下：测量范围为0·1~2·0V；频率范围为10~3 000MHz；不确定度为0·25%~0·7%(k=3)；工作方式为自动测试。2工作原理和构成2.1工作原理射频电压基准是建立在功率替代原理的基础

In this paper, principle and technique of volume holographic storage are presented such as volume grating formation, Bragg diffraction, and horizontal angle selectivity.

本论文介绍了体全息存储原理及技术，包括体光栅的形成和布拉格衍射、衍射效率、水平角度选择性，还介绍了相干光学信息处理系统、Vander Lugt 滤波器的形成过程，给出了多重匹配滤波器相关的运算过程，最后介绍了子波变换的定义以及光学子波变换。

Police in West Palm Beach is still trying to figure out what drove a man to go on a shooting rampage at a Wendy's. The gunman opened fire, killing one and injuring another five. The man later took his own life.

West Palm Beach一家温蒂圣堡餐馆，一持枪分子（没有翻译出 go on a shooting rampage，这里可以译成"开枪扫射/滥射"）造成1人死亡，其它5人受伤，然后自杀，警察仍在试图找出该持枪分子制造屠杀（"屠杀"用在这里有点不太好）的动机。

Firstly,nanostructure ZnO materials were controllably deposited by radio frequency magnetron sputtering method,with optimized Ar/O_2 ratio and sputtering power,choosing suitable buffer layers.

利用磁控溅射方法，通过优化制备过程中的氩氧比和溅射功率等工艺条件，选择合适的缓冲层材料，在硅衬底制备出了结构和尺度可控的ZnO纳米结构材料。

The effects of the relation on recording geometry with effective electrooptical coefficient and space charge field, wavelength of diffraction beam and diffraction angle on exposure sequence are taken into account, and the perfect exposure sequence is discussed based on recurrence method.

考虑有效电光系数和空间电荷场随写入光路几何组态的变化关系，以及各信道衍射光波长、衍射角等因素对曝光时序的影响，利用递推法推导出更为精确的曝光时序。

But the arrow did the bird no harm; ssbbww.com it dropped a golden feather from its tail, then flew away.

不过，射出的箭没有伤着那只鸟，只是把它尾巴上的一根金色的羽毛射了下来。

Recuring to the assistance from ADS , which is used for radio frequency simulating ,and general circuit simulating software - MULTISUM , several key technoledgeincluding RF signals disposing , local swept oscilating circuit , system control and frequency display etc. were discussed emphatically in the treatise . Not only the relevant theory but also the hardware circuit design were elaborated explicitly .

本文借助于射频模拟仿真软件ADS以及通用电路仿真软件MULTISIM，着重研究了弹道监测接收机的射频调理过程、本振扫频振荡技术、控制和显示技术等几个部分，在充分地探讨了相关理论的基础上，给出了相应的电路硬件设计。

This paper describes tire test module's design and implementation of the direct-type Tire Pressure Monitoring System, with Infineon\s SP12 temperature and pressure sensors, Microchip's low-power microcontrollers PIC microcontroller, Maxim\s MAX1479 RF transmitter chip as the core of the tire test module, specifically the optimized circuit connection diagram is given in this paper, and a composite tire ID positioning method is proposed.

作者单位：哈尔滨理工大学，测控技术与仪器黑龙江省高校重点实验室论文摘要：本文针对直接式汽车轮胎压力监测系统，以Infineon公司的SP12温度压力传感器，Microchip低功耗微控制器PIC系列单片机，Maxim的MAX1479射频发射芯片为核心对胎内检测模块进行了设计和实现，并具体给出优化了的电路连接框图。

It can be surely concluded that in generalcases the matrix characterising the action of the optical system can be truncatedto finite order within any given errors….

在线性光学范围内，这个矩阵与入射和衍射光场无关。文中还给出了复合光学系统的作用矩阵与各组成系统的作用矩阵间的关系。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐