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单词 thermo-focal
释义

> as lemmas

thermo-focal
thermo-focal adj.
Brit. /ˌθəːmə(ʊ)ˈfəʊkl/
,
U.S. /ˌθərmoʊˈfoʊk(ə)l/
of or pertaining to the focal length of a lens as influenced by heat.
ΘΚΠ
the world > physical sensation > sight and vision > optical instruments > lens > [adjective] > focal length or point
focused1784
thermo-focal1903
1903 Science 27 Feb. 333 A study of the thermo-focal changes in long focus lenses.
extracted from thermo-comb. form
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as lemmas
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