PEI Shunping, XU Zhonghuai, WANG Suyun. 2004. Discussion on origin of Pn velocity variation in China and adjacent region. Acta Seismologica Sinica.是什么意思_PEI Shunping, XU Zhonghuai, WANG Suyun. 2004. Discussion on origin of Pn velocity variation in China and adjacent region. Acta Seismologica Sinica.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句