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单词
brightener
释义
bright·en·er
\-t(
ə
)nə(r)\
noun
(
-s
)
1.
:
fluorescent brightener
2.
:
a chemical or mixture of chemicals added to an electroplating bath to increase the brightness of the plate (as nickel plate)
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更新时间:2026/7/19 21:48:44