| 单词 | qef |
| 释义 | > as lemmasQ.E.F. Q.E.F. n. [ < the initial letters of post-classical Latin quod erat faciendum (12th cent. in a non-mathematical context) < classical Latin quod what (see what pron., adv., int., adj.1, conj., and n.) + erat , 3rd singular imperfect indicative of esse to be (see be v.) + faciendum , neuter of gerundive of facere to make (see fact n.)] ‘which was to be done’. ΚΠ 1875 Encycl. Brit. I. 29 Q.E.F., (Quod erat faciendum) which was to be done. 1929 Philos. Trans. (Royal Soc.) A. 228 269 It seems desirable to conclude with a pointed ‘Q.E.F.’ in the shape of an illustration of the application of the formulæ obtained to a particular case. 1992 College Math. Jrnl. 23 305 Hence, before the black counter was added, it contained BW, i.e. one black counter and one white. Q.E.F. < as lemmas |
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