英语词汇“when did it start”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	when did it start
释义	when did it start 什么时候开始的？
随便看	black-body emissivity Blackbody equivalent temperature blackbody flame temperature blackbody furnace black body furnace black-body furnace blackbody lamp black body lamp blackbody locus black body locus blackbody noise equivalent power blackbody origin blackbody photocell black body photocell black-body photocell blackbody radiance curve blackbody radiantion spectrum blackbody radiant source blackbody radiating temperature blackbody radiation black body radiation black-body radiation blackbody radiation curve blackbody radiation emittance blackbody radiations