The nonresponse rate varied among districts of residence and urbanization levels. 无反应率均因县市别和都市化程度会有所差异。
The reaction rate of non-leptonic quark weak interaction and the bulk viscosity of quark matter in the magnetic field are investigated. 研究了磁场中夸克非轻子弱作用过程的反应率和黏滞系数。