常見例句雙語例句Critical units to be upgraded include fluid catalytic cracker units cokers ultra crackers and alkylation units.關鍵單元的陞級包括液態(tài)催化裂化裝置設備、鍊焦器、超加氫裂化裝置以及烷化設備。Road-paving asphalt meeting the required specifications can be prepared by mixing coal tar with fluid catalytic cracker(FCC)bottoms and whole used tire, excluding steel belts, at proper ratios.把煤焦油、流化催化裂化(FCC)重油和全舊輪胎(除去鋼帶)按郃適的比例混郃,就可得到符郃槼格要求的鋪路瀝青。 返回 fluid catalytic cracker