| 单词 | tcdd | 
| 释义 | > as lemmasTCDD   TCDD n. = tetrachlorodibenzodioxin n. at tetra- comb. form 2a(c)(ii). ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > 			[noun]		 > halogenated hydrocarbons > specific tetrachlorethane1871 pentachloroethane1872 trichloroethylene1889 Freon1932 tetrafluoroethylene1933 fluorocarbon1937 perfluorocarbon1947 heptachlor1949 tetrachlorodibenzodioxin1959 TCDD1971 CFC1976 1971    New Yorker 14 Aug. 57  				The only real question concerning the safety of 2,4,5-T has to do with the TCDD dioxin with which it is contaminated. 1981    McGraw-Hill Yearbk. Sci. & Technol. 199/2  				It is impossible to substantiate the charge that TCDD has led to an increase in the number of malformed children in Vietnam. < as lemmas | 
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