首页  英汉  汉英  英英  词组  用法  例句  同义词  写作  俚语  缩写  词源  词根  法汉  德汉  日汉  俄汉  韩汉  西汉  意汉  泰汉  越汉

单词	neutron activation analysis
释义	neutron activation analysis noun : an analytical method used to determine the chemical elements comprising a material by bombarding it with neutrons to produce radioactive atoms whose emissions are indicative of the elements present called also neutron activation Word History First Known Use 1947, in the meaning defined above
随便看	potarite potash potash bulb potash hunger potash soap potashes potassa potassamide potassic potassiferous potassium potassium acid oxalate potassium acid sulfate potassium acid tartrate potassium amide potassium bifluoride potassium binoxalate potassium bisulfate potassium bitartrate potassium bromate potassium bromide potassium carbonate potassium chlorate potassium chloride potassium chromate

英语词典包含469781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。