Scale and Rotating Velocity of a Big Shear Vortex at the Fire-facing Side of a Burner Region in a Large-sized Utility Boiler是什么意思_Scale and Rotating Velocity of a Big Shear Vortex at the Fire-facing Side of a Burner Region in a Large-sized Utility Boiler在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句