current issues on contemporary novels  新时期小说专题

current issues on journalism administration  新闻管理专题

current issues on report writing  通讯写作专题

Discussion on Issues of Food Security  关于粮食安全问题探析

Issues on Juvenile Crimes and Delinquency  青少年犯罪问题

Some Issues on China’s Food Security  中国的食物安全问题

After operation on chest  胸外术后

Bidirectional Operation on Single Track  单线双向运行

control on operation  运行管理

co-operation on counter-terrorism activities  在反恐活动上合作

decision-making on operation  运营决策

elementary operation on a matrix  初等变换

Exploration on Operation  报废周期

had an operation on my leg  做脚部手术

hands on operation  实际操作; 实作

instruction on operation and maintenance  操作及维护说明书

Interim Procedures Concerning Lightering Operation on Anchorage at Harbour  港口水上过驳作业暂行办法

on Operation  投产

operation on abdominal cavity  腹腔手术