30 provinces in China almost have lead zinc resources,relatively concentrated in 5 mining areas of Lanping and Qingling ......

A fast growing population is moving into cities and as estimated eight out of ten people by 2050 will be urbanized in a ......

The concern of the Chinese world of learning over the existing problems of urbanization is concentrated at present on en......

昆明衛生职业学院　　【Abstract】Good psychological qualities play an important role on students’ learning. Psychologica......

目的 通过对深圳市集中式餐具消毒企业发展现状和卫生状况调查,了解行业主要存在的问题,从吲家现行法律、法规、行业发展重要性和......

In order to realize on-line quantitative detection on SF6 and effective control of running state of SF6 high voltage pow......