It is a debated topic if there are any observable precursor anomalies prior to the earthquake( EQ hereafter) and if the ......

To solve the technical problems of hot metal desulfurization by injecting magnesium particulate, a new method of hot met......

Based on the digital seismic waveform data observed from regional and reservoir seismic networks,the seismicity and sour......

首先对国内化学教材在描述氧化数概念时存在的不同说法进行讨论,在此基础上建议用指定电荷数一词代替形式电荷数(或形式荷电数)和......