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- vertical quarter wave antenna 四分之一波长垂直天线
- quarter wave antenna 四分之一波长天线
- The hardware included helicon wave antenna and focusing system. 其中硬件系统主要包括:螺旋波天线和辉光聚焦系统的设计;
- The effect of dichroic and retarded quarter wave plate in the experiment are discussed by the analysis to the fringe of photoelastic strains. 通过光弹性应力条纹的分析，具体讨论1/4波片具有延迟差和二向色性时对本试验的影响.
- What is a scalar wave, and what is the significance of the new head chakras forming a scalar wave antenna? 分级梯状波是什么,而新的头顶脉轮形成一分级梯状波的意义是什么?
- Under the condition of total reflection can be achievd a quarter wave plate in single waveleugth or wide wave length by means of matching a prism with a single layer or multilayer dielectic thin film. 在全反射条件下;用单层或多层电介质薄膜与?镜匹配;可以实现单波长或宽波段的1/4波片.
- Aperiodic Antenna An antenna designed to have an approximately constant input impedance over a wide range of frequencies; e. G., Terminated rhombic antennas and wave antennas. 非谐振天线一种天线,在一个大的频率范围里有近似连续的输入阻抗,例如终端菱形天线和波浪天线。
- A shot base loaded whip antenna is more convenient to install, but the efficiency is less than a quarter wave whip 短鞭状基地天线是最便于安装的,但效果不如四分之一波长的鞭状天线
- Research on Airborne Short Wave Antenna 机载隐蔽式短波天线研究
- A Tunable Gravitatiorial Wave Antenna 一种可调谐的引力波天线
- free from reflected wave antenna 防反射波天线, 反射波抑制天线
- The rent is due at the end of each quarter. 缴纳租金以每季度末为期限。
- micro-slotline leaky wave antenna 微带缝隙漏波天线
- Our team held its own after the first quarter. 我们队和对手在开始的四分之一场里打了个平手。
- socket for V.H.F. long wave antenna 超高频长波天线插孔
- RF Coupling Loop Design for Superconducting Quarter Wave Resonator 超导四分之一波长谐振腔高频功率磁耦合器物理设计
- The dividend pay is equivalent to one quarter of the pretax profit. 所付股息相当于税前利润的四分之一。
- Beverage is noted for his experimentation with long wire antennas and received a patent on the Wave Antenna on June 7, 1921 which is commonly referred to today as the Beverage antenna. 贝威尔基于1921的6月7日凭着他着名实验的长线天线来申请了波长天线专利，所以今天都指贝威尔基天线诞生于1921年6月7日。
- We pay our rent at the end of each quarter. 我们於每个季度末付房租。
- The moon is in its last quarter. 月球现处於下弦。
