英语词汇“first contact, first contact of umbra”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	first contact, first contact of umbra
释义	first contact, first contact of umbra 初亏；主要食相之一；月面和日面外切或月球与地球本影外切的现象。也常指此食相发生的时刻。
随便看	after-class sport training After class,the teacher took Alice to one side After class, the teacher took Alice to one side after-clearing after class After climbing those stone steps after closing After closing or aborting an after closing trial balance after-closing trial balance aftercoagulation after coagulation after cofferdam After Cold War after-collector after college After college I really want to get somewhere aftercolling after colonialism after-column derivation after-class after-class activities aftercombnustion aftercombustion after combustion