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单词
Fraunhofer,Joseph von
释义
Fraun
·
ho
·
fer,Jo
·
seph von
/ˈfraʊnˌhəʊfər/,/ˈjəʊzeffən/
夫琅和费
(1787-1826,德国物理学家,天体分光学创始人,发明衍射光栅,率先研究太阳光谱中的暗线,奠定了光谱学基础)
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if I am spared
-ific
-ification
IF, i.f., i-f
if I had my rathers
IFIP
if it comes to that
if it comes to the pinch
if it comes to the push
if it comes (或 came) to the push
IFJ
if memory serves
If my aunt had been a man
If my aunt had been a man, she'd have been my uncle.
if my memory serves me
if (my) memory serves (me)
if necessary
if need be
if-need-be
if needs be
if need(s) be
Ifni
ifnis
if not
IFO
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更新时间:2026/2/10 7:59:14