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丁二烯
dīng èr xī
  1. 1 butadiene C4H6
  2. 2 biethylene
丙烯
bǐng xī
  1. 1 propylene C3H6
丙烯酸
bǐng xī suān
  1. 1 acrylic acid C3H4Ó
丙烯酸酯
bǐng xī suān zhǐ
  1. 1 acrylic ester
乙烯
yǐ xī
  1. 1 ethylene
  2. 2 vinyl
乙烯基
yǐ xī jī
  1. 1 vinyl
  2. 2 vinyl group (chemistry)
单端孢霉烯类毒素 | 單端孢霉烯類毒素
dān duān bāo méi xī lèi dú sù
  1. 1 trichothecenes (TS, T-2)
四氯乙烯
sì lǜ yǐ xī
  1. 1 tetrachloroethylene
氮烯
dàn xī
  1. 1 nitrene (chemistry)