华中理工大学汉口分校管理工程系
Hankou Branch of Huazhong University of Science and Technology Management Engineering Department
华能国际电力开发公司北京分公司
huaneng beijing thermal power plant
滑油分配器
oil distributor mechanism
化工分离工程
chemical separation engineering
chemical separating
化学成分变化规律
changing law of chemical composition
化学成分标型
chemical composition typomorphy
化学成分波动
chemical composition fluctuation