fluid catalytic cracker造句

例句与造句

1. Critical units to be upgraded include fluid catalytic cracker units , cokers , ultracrackers and alkylation units
   关键单元的升级包括液态催化裂化装置设备、炼焦器、超加氢裂化装置以及烷化设备。
2. It's difficult to find fluid catalytic cracker in a sentence. 用fluid catalytic cracker造句挺难的