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- It exhibits an impedance of 300 ohms whereas a half wave dipole is 75 ohms and I'm certain someone will be alert enough to ask "why 75 ohms, if figure 3 above is 50 ohms? 它陈列300欧姆阻抗但是一个半波偶极是75欧姆并且我肯定某人将是足够机敏的要求"为什么75欧姆,如果图3上述是50欧姆?
- half wave dipole 半波偶极子
- RF, half wave positive or negative, and full wave. 射频波、正半波、负半波,以及全波整流。
- Each band represents a deviation of one half wave length of the applied light. 每条光带表示所用光的一个半波的波长的偏差。
- Converts the negative half wave of an alternating current into a positive half wave. 把负极半波交流电转变成正极半波交流电。
- The function of supersensitization was explained by measurement of ESR signal and polargraphic half wave potential. 通过ESR信号及极谱半波电位的测试，对超增感机理进行了解释。
- The following conclusions has been made:1)The electrode width can be optimized to get the lowest half wave voltage of BOA type optical switches. 结果表明 :通过优化设计电极的宽度可以获得 BOA型光开关最小的半波电压 ;
- The next step is to obtain the negative parts of the signal via the reverse process of the HWR (Half Wave Rectification) stage.Finally the func... ‘一“],并表现出较好的性能,目前这方面的 研究正进一步深入之中。
- Usiflg the atom-atom polarizability as the index, which may be obtained a linear relationship with the half wave potential values. 为极谱分析中选用有机试剂提供了有用的信息。
- Compartment of clinical observation of treatment of anklebone wrench and anklebone contuse from low frequency all and half wave magnetic field. 目的低频波半波磁场对踝关节扭挫伤治疗临床观察比较。
- Our device consists of two birefringence plates and a half wave plate.On the front and back surfaces of the OLPF, an antireflection film and an infrared cutting film arc plated. 其主要由2片双折射晶体平板和1片波片构成三明治结构，并在前、后表面分别镀上红外截止膜和增透膜。
- The conclusion is that the half wave galloping of the bundle conductors can be mitigated by increasing the length of the sub-span in the centre of span. 最后得到的结论是：对于分裂导线的半波舞动，增大档内中部的次档的长度，可减小分裂导线的半波舞动。
- Technical points: the historical trend has always been aggressive, and constantly re-Tianquan Major Holders ex, in the first half wave of 3-14 yuan's sharp rise. 技术面看点：历史走势一直凶悍，不断送股除权再填权，上半年一波3元至14元的涨幅惊人。
- Calculation of Current Distribution of A Half- wave Dipole by MOM 矩量法计算半波振子天线电流分布
- I apportioned half the property to each of them. 我把财产的一半分配给他们各人。
- The microwave bulk acoustic delay lines with centre frequency of 8 GHz were fabricated using a multilayer structure consisting of alternative half wave thick layer of ZnO films with different electro mechanical coupling factors. 用具有不同机电耦合系数、厚度为半波长的交替排列多层氧化锌薄膜制成了中心频率为8GHz的声体波微波延迟线。
- In this paper, the half wave potentials of chromic acid derivatives are determinated in H 2O and DMF by polarography and selective oxidation of chromic acid derivatives is described. 用极谱法测定铬酸衍生物的半波电位，从理论上讨论了铬酸衍生物氧化作用的选择性。
- She reckoned she had cut her cost by half. 她估计她减少了一半的费用。
- I worried half the night and have a fitful sleep. 我半个晚上都一直在担心，故而时醒时睡。
- Bill wave his hand to us and then drive away. 比尔向我们挥手告别后开车走了。
