精密测地仪 tellurometer
大地测距仪 geodesic range finder ; geodesic distance meter
接地测量仪 earthometer
立体地形测图仪 stereotopograph
遥测地震仪 earthquake telemeter ; [地震] telemetric seismic instrument ; telemetry seismograph
接地电阻测试仪 Ground Resistance Tester ; earth resistance tester ; grounding megger ; GND-Resistance Tester
测地经纬仪 survey theodolite
地图测量仪 Map measurer
采取有效措施，测长仪能在恶劣的现场条件下可靠地工作。
By taking effective measures, this instrument can work reliably in bad field working conditions.
本文较详细地阐述了FD - 105 K测氡仪技术改造的思路并对测氡仪标定器的研制及应用作了介绍。
The thinking of the technical transformation on FD-105K Rn demarcation device and the development and application were introduced in detail in this paper.
作者根据20多年使用经纬仪测风的体会，深入浅出地论述了怎样测风以及如何提高测风质量。
Based on the experience from using the theodolite for 20years, we discussed how to use theodolite to observe wind and how to improve the observation quality.
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