| 单词 | proton gradiometer |
| 释义 | > as lemmasproton gradiometer proton gradiometer n. a rod with a proton magnetometer at each end, which may be stood on the ground in a vertical position to measure local variations in the strength of the earth's magnetic field at ground level (such variations being due to features just below the surface). ΚΠ 1960 M. J. Aitken in Archaeometry 3 38 Previous articles..have described the use of the proton magnetometer for archaeological prospecting. The proton gradiometer is a development which not only has advantages in operation, but is also less complex and therefore cheaper to construct. 1970 Oxf. Univ. Gaz. 100 Suppl. vi. 25 Comparative surveys using proton gradiometer, pulsed magnetic induction, and soil conductivity meter. 1990 Times 6 Oct. (Sat. Review) 10/1 Now is the age of..proton-gradiometers..and pulse induction metal detectors, remote-sensing devices costing tens of thousands of pounds. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。