Feng X Y,Lu L Q,Xiao M T.Research report about velocity-variant mapping in complex survey in 2004,PetroChina Exploration &Development Research Institute (Northwest),2005.是什么意思_Feng X Y,Lu L Q,Xiao M T.Research report about velocity-variant mapping in complex survey in 2004,PetroChina Exploration &Development Research Institute (Northwest),2005.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句