z z meaning in English
来表示吗
Examples
- Pan z q , zhang y x , chen z z , et al . outline of a public health risk assessment method . international journal of environment and pollution , 1996 ( 4 - 6 ) : 428
潘自强主编.环境危害评价- -公众健康危害评价方法及其应用.北京:原子能出版社, 1991