Screw pumps can be effectively used for oil withdrawal on viscous oil wells, sand wells, low production wells and those late in water-drive course.是什么意思_Screw pumps can be effectively used for oil withdrawal on viscous oil wells, sand wells, low production wells and those late in water-drive course.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句