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单词
polyurethane
释义
polyurethane
pol
y
ur
e
thane
/
ˌpɑliˈyʊrəˌθeɪn
/
noun
[uncountable]
Etymology
ETYMOLOGY
polyurethane
Origin:
1900-2000
poly-
+
urethane
type of chemical compound
(19-21 centuries)
(from
Latin
urea
substance found in urine)
a plastic used to make paints and
varnish
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Seine, the
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seismic activity
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更新时间:2026/7/22 3:39:51