Search History Select to load keywords (dateIssued equals "[1996 TO 1999]") AND (subject equals "Ethylene") AND (subject equals "เอทิลีน") AND (subject equals "Polymerization") AND (subject equals "ตัวเร่งปฏิกิริยาเมทัลโลซีน") AND (subject equals "โพลิเมอไรเซชัน") (subject equals "Catalysts") AND (dateIssued equals "[2500 TO 2556]") AND (subject equals "ซีโอไลต์") AND (subject equals "Platinum catalysts") AND (subject equals "สารประกอบอะโรมาติก") AND (subject equals "Zeolites")
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