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D.D.T.
[D.D.T. 词源字典]
also
DDT
, 1943, from
d
ichloro
d
iphenyl
t
richlorethane; first made in U.S. by Geigey & Co.
[D.D.T. etymology, D.D.T. origin, 英语词源]
[D.D.T. 词源字典]