Wiktionary英语词典
收录 1,329,381 个英语单词，来自Wiktionary的英文释义、IPA发音、词源、词形变化和词汇关系数据
R开头单词
(共59,864个)
radioactive chlorine (especially when used as a tracer)
A recording made by means of radiochromatography.
plural of radiochromatogram
Any chromatograph in which the separated components are detected by their radioactivity.
plural of radiochromatograph
Any form of chromatography in which the separated zones are detected by their radioactivity
An image produced by a radiochromatoscanner
An instrument that scans a chromatogram of radiolabelled compounds
plural of radiochromatoscanner
plural of radiochromatoscan
That changes colour on exposure to ionizing radiation
radioactive chromium
Relating to, or employing, radiochronology
Relating to radiochronology
A technique in which the absolute age of an artefact is determined by measuring the ratios of specif...
An X-ray machine with a camera, able to record moving pictures of the internal organs.
Relating to radiocinematography.
plural of radiocinematograph
The use of the radiocinematograph.
An electronic device that was supposed to cure disease, operating based on tables of frequencies.