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- If this film series is used in He Ne laser, the dual frequency laser with 5MHz beat will be produced. 此膜系用于氦氖激光器 ,可制出频差为 5 MHz量级的双频激光器。
- Dual frequency and amplitudes vibration system may obtain optimal compaction for different quality and course materials. 振动系统:双频率和双振幅设置,保证了整机在压实不同性质、不同厚度的铺层时,均可达到最佳的压实效果;
- In order to improve target detection performance and anti-stealth ability for modern AEW radar, this paper presents a solution of dual frequency aperture sharing. 为了进一步提高现代机载预警 (AEW)雷达的目标检测及反隐身能力 ,本文提出双频带孔径共用的实现策略。
- The method of measuring deep soil moisture by VHF/UHF dual frequency multiple polarization Synthetic Aperture Radar (SAR) consisting of vector network analyzer is proposed. 该文提出了利用由矢量网络分析仪构造的VHF/UHF双频、多极化合成孔径雷达(SAR)测量深层土壤湿度的方法;
- In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments. 摘要为了研究双频激光器的光回馈特性,采用双折射外腔光回馈的方法,进行了理论分析和实验验证,取得了双频激光器中条纹倍频现象的数据。
- The algorithm was presented as a mathematical description independent of any applications and was used to design a dual frequency grating projection profilometry system. 用独立于任何实际应用的一般形式给出了该算法的数学表述 ,并以此为基础设计了一套双频光栅投影轮廓测量系统。
- This paper introduces a new method for both producing and controlling the frequency difference of a dual frequency laser by using an electromagnetical force which is applied onto the window plate. 提出和研究一种新的方法,即利用电磁铁的电磁力去产生和控制双频激光器的频差。
- Conclusion: The high frequency ultrasonic wave scan is a useful method in diagnosing mucocele of the appendix . 结论:高频超声是阑尾粘液囊肿术前诊断及与其他病变鉴别的重要检查手段。
- Radio frequency ultrasonic technique for metal brazed high-density honeycomb structures and de-fect recognition are described. 利用射频超声技术检测大密度金属钎焊蜂窝构件及缺陷识别技术。
- Research on Dual Frequency Metal Detector 双频金属探测器的研究
- As we have learned, breed of this kind of software is various, the principle of place introduction is to use high frequency ultrasonic to come drive midge. 据了解,这类软件品种繁多,所介绍的原理都是用高频超声波来驱蚊。
- dual frequency GPS rapid positioning 双频GPS快速定位
- dual frequency induced polarization 双频激电
- Diagnostic Value of High Frequency Ultrasonics for Extra-abdominal Hernia 高频超声对腹外疝的诊断价值
- dual frequency induced polarization method 双频激电法
- The road opened out into a dual carriageway. 这条路已扩展成了复式车行道。
- dual frequency liquid crystal gel 双频率液晶胶体材料
- simultaneous dual frequency dye laser 同步双频染料激光器
- The design principle,circuit analysis,and transducer construction of the low frequency ultrasonic tester are described.The applications to testing concretes and rocks are discussed. 本文叙述了低频超声波检测仪的设计原理;电路分析;换能器结构并讨论了在混凝土;岩体中应用.
- His dual role as a composer and a conductor made him very busy. 他作曲家和指挥家的双重身份使他非常繁忙。