您要查找的是不是：
- ground direction finder 地面定向器
- I am calibrating radio direction finder or adjusting compasses. 我正在校准无线电测向仪或校正指南针.
- Inspection installation for loop antenna of direction finder on berth. 测向仪环状天线船台安装检查。
- A radio direction finder system is designed on the basis of the principle of Doppler Direction Finder technology. 在对多普勒无线电测向技术深入研究的基础上设计实现了一套无线电测向系统.
- The first section of this paper discusses the theory of the Doppler Radio Direction Finder technology. 本文首先分析了多普勒无线电测向技术的基本原理。
- In this case the fighters, typically Focke-Wulf Fw 190s, were equipped only with a direction finder and landing lights. 夜间战斗机的乘员多在两名或者是两名以上，除了共同分担作业压力，提高滞空时间，也可以更好的搜索目标。
- Function test and calibration self-heterodyne curve for direction finder on sea trial. 航行试验中测向仪效用试验及自差曲线校正。
- Ground Meteorology Direction Finder 地面气象测向仪
- ground station radio direction finder 地面无线电测向仪
- And the second section is the detail about the hardware of Doppler Direction Finder and the hardware and software of control circuit and display circuit in system. 接着描述了无线电自寻的系统中多普勒无线电测向仪的硬件构造,以及控制电路板、显示电路板的软件及硬件构造。
- He stayed for days on the broken ground directing relief teams from the front. 他在断壁残垣中呆了几天，直接指挥和安慰最前线的人。
- He has designed more than 30 types of safety equipments, including a low cost earthquake alarm, an epicenter direction finder and an epicenter distance locator. 他已经设计了30多种安全装置，包括一个低成本的地震报警仪，一个震中方向确定议，以及一个震中距离确定仪。
- When your search party is within range of his signal, your directional finder will lead you right to him. 如果搜索队能进入讯号的范围，就可以运用导向装置找到他。
- direction finder and radiobeacon 测向仪与指向标
- Study on Dual-Channel Doppler Direction Finder 双通道多普勒测向机研究
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- a high-frequency direction finder 高频测向器
- The ground was covered with ferns. 地面上长满了羊齿植物。
- automatic direction finder ( ADF) 自动测向器
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
