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- The two systems of government are polar opposites. 这两种政体正好相反。
- This method is simple and effective, though it requires measurements of complex signal and a priori knowledge of the polarization characteristics of interference. 该方法简单、实用，但需要获得信号的复数形式以及干扰极化特性的先验知识。
- This paper reports the experimental results of both polarization characteristics and transverse feature of electromagnetic wave radiated from corona discharge of hardware. 介绍了金具上电晕放电辐射电磁波极化方式和横向分布特性的实验结果。
- The polarization characteristics of Travelling-wave semiconductor optical amplifier (TW-SOA) is investigated based on th gain property of active Fabry-Perot resonator. 以有源法布里-珀罗谐振腔的增益特性为基础,研究了行波半导体光放大器的偏振特性。
- The polarization characteristics of the corner-cube prism for YAG laser are analyzed, and two kinds of optical thin films are designed to compensate its polarization properties. 用琼斯算法对YAG激光用全反射角立方反射镜的偏振特性进行了分析，并利用薄膜的偏振特性设计了两膜系对其进行了补偿；
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- Firstly, the polarization characteristics of active multi-decoy of any elliptic polarized antenna jammer are presented and the polarization scattering properties of radar target are also discussed. 首先详细分析了任一椭圆极化天线有源假目标的极化特性，并探讨了典型雷达目标的极化散射特性。
- Power spectra and polarization characteristics of Pi2 pulsation observed at Beijing from Aug. 1977 to March 1978 are evaluated in the present paper by use of the Maximum Entropy Method (MEM) and complex demodulation. 本文利用北京白家疃地磁台1977年4月至1978年3月的地磁脉动记录,使用最大熵值法(MEM),对主要发生在夜间、短序列的Pi2型无规脉动进行了功率谱分析,同时使用复解调法分析了偏振特性。
- The polarization characteristics of a twisted DBR fiber laser are investigated.Analytic formulae for the polarization-mode beat (PMB) frequency and polarization direction are derived. 研究扭转DBR光纤激光器的偏振特性，并导出PMB频率和偏振模方向的解析公式。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- In This paper, the author analyzes the mechanism of polarziation characteristics caused by faulty single mode fiber, and expounds several physical phenomena caused by polarization characteristics. 本文分析了性能不完善的单模光纤产生偏振特性的机理，并解释了偏振特性引起的几种物理现象。
- The polarization characteristics of active decoy of any elliptic polarized antenna were analyzed,and the analytic expression of its instantaneous polarization projection vector(IPPV) was given. 分析了任一椭圆极化天线有源假目标的极化特性,导出了其瞬态极化投影矢量(IPPV)的解析表达式,分析了不同极化电磁波激励下雷达目标散射回波IPPV的起伏特性。
- Located or found in one of the Polar Regions. 环极的，围绕极地的位于或发现于一个极地区域中的
- In spite of vigilance a polar bear escape from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
- She has Asiatic characteristics. 她具有亚洲人的特点。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- Paradox and irony are characteristics of her style. 她善於运用似非而是的隽语和反语。
- Although they can swim, the polar bears are terrestrial animals. 北极熊虽然会游泳，但也是陆栖动物。
- Secondly, take the microstrip array and the feed technology as the foundation, analyses deeply dual-polarized microstrip antennas array polarized characteristic. 其次,以微带阵列和馈电技术为基础,详细分析双极化微带阵列天线的极化特性。
- In spite of vigilance a polar bear escaped from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
