他已经屡次提出申请，要求批准他参加建造那座大型炼油厂。 He has put in repeated requests for permission to help to build the big oil refinery.
石油工业的特征是它有一点点危险性，所以炼油厂的厂址总在远离人口集中的地方。 The oil industry is marked by an element of danger, hence the siting of refineries at a distance from population centres.
他被那家炼油厂解雇了。 He was dismissed from the oil refinery.
