石油化學 (sek6 jau4 faa3 hok6) — petrochemistry in Cantonese
sekˍ₆石jauˎ₄油faa˗₃化hokˍ₆學简 石油化学
Mandarin Pinyin: shi2 you2 hua4 xue2
Meaning of 石油化學
nounpetrochemistry
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