Using HDS-1 fast data flashing Rn measure instrument, the gas radon was measured in the active fault(zone)or broken zone and earthquake swell of the Wequan reservoir dam location.
采用HDS-1型快速数字闪烁测氡仪，对温泉水库坝址区活动断裂（带）或破碎带以及地震鼓包等进行了氡气测试。
We have discussed some noticeable issues which affect the ratio of Radon in underground water observed by FD-125 Rn instrument.
论述了FD-125测氡仪在水氡观测中值得注意的几个问题：①仪器的供电系统中不应有线路接触不良；
Radon: Chemical element, chemical symbol Rn, atomic number 86.
氡：化学元素，化学符号Rn，原子序数86。
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