双射

The negative angle of refraction behavior associated with the negative index of refraction exhibited by DNG metamaterials is demonstrated.

并利用点源模拟出平面双负材料具有突破Rayleigh衍射极限使倏逝波成像的能力即：完美透镜现象。

Because of the rapid development of the wireless communication technology, the design and research of the integrated circuits in the related field has gained more and more attention in recent years. And with the advance of the IC process technology, the cutoff frequency of MOS devices can reach several giga herz or more. It is a trend that CMOS process will replace the III-V compound process such as gallium arsenide or silicon bipolar process which were dominant in the fields of radio frequency and microwave.

近年来，由于无线通信技术的飞速发展，相关领域的集成电路的设计研究也受到越来越多的关注；同时由于工艺技术的不断进步，MOS器件的特征频率也可以达到几个GHz或更高的水平，原来在射频、微波领域占主导地位的三五族化合物半导体工艺如砷化镓及硅双极型工艺也有逐渐被CMOS工艺所取代的趋势。

The focusing effect by anyone of the biconcave erythrocyte, oblate spheroid,and disk sphere erythrocyte was found to be so remarkable that the light intensities at the focused areas close to the erythrocyte membrane were about 10 times higher than that of the incident light when the light irradiated along the erythrocyte plane.

我们发现会聚效应在双凹型，扁球体型或圆盘球体型红细胞中的任何一个都如此显著，以至于当激光照射方向沿着红细胞平面时在靠近红细胞膜的会聚区域的光强达到入射光强的10倍多。

Now, two dozen such societies have sprung up in China, mainly along the coast whose development has brought prosperity (you need money to be a birdwatcher: for binoculars, spotting scope and camera equipment). This growing band is trying to halt the destruction that development has brought, teaching youngsters about the joy of birds and holding local governments and businesses to account when they trash wild places.

现在，这样的团体有二十多个，大都兴起于繁荣的沿海城市（作为一个观鸟者，必须有钱去添置双筒望远镜、射弹观测镜和照相机）这支增长的队伍正努力制止开发造成的破坏，他们教育孩子们，有鸟类在是很愉快的，并坚持让政府和商人统计他们破坏的野地。

This study probes on the effect of disc birefringence with the injection compression molding process.

摘要 本研究探讨射出压缩成型条件对光碟片的双折射之影响。

Birefractive index and Bragg diffraction have been oboserved and measured in the crystals.

测量和研究了晶体的双折射率和布喇格衍射。

Sensitivity characteristic of surface plasma resonance spectrum with change of incident light angle is studied.

研究了表面等离子体波共振光谱对入射光角度变化的敏感特性，提出了对共振波长和共振强度进行双参数检测的方法。

In common emitter configuration and class C operation, the SiGe heterojunction bipolar transistor with continuous wave output power of 5W and collector conversion efficien...

在共射结构C类工作状态下，SiGe异质结双极晶体管工作在900MHz时，连续波输出功率为5W，集电极转化效率为63％，功率增益为7.4dB。

There are the main achievement of the companies(have already obtained the patent ): patent number: zl2005201144143,《the solar energy urges the generating equipment three times》, patent number: zl00245835.7,《solar energy changes in temperature air conditioning》patent number: zl200410042645.8, the application patent:《the solar energy encloses and stops up a pile of penetrating type generating equipment》,《the solar energy does not

申请专利有：《太阳能围堵叠射式发电设备》、《太阳能无压缩机冰箱》等。公司的主要产品有：双抛面太阳能发电成型设备系列；新型太阳能发电检测系列；数控剪板成型设备系列；数控折弯设备系列；数控冲压设备等。公司奉行"以质量为生命，以诚信为法则"不断吸收中外先进技术和宝贵经验，不断开拓创新产品，为客户量身定做太阳能生产线，上门安装跟踪服务，确保成功。

In chapter 1,we find out a kind of two-parameter invariant cubic curve family of a certainquadratic system which is important one for studying the distribution of limit cycles.

第二章讨论一般的二次系统具有三次代数曲线同宿环的充要条件，针对问题，我们采用了具有双曲鞍点的二次系统的标准形，利用仿射坐标变换，我们把系统和曲线同时简化，使问题得到了完满解决。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。