A method to study the throttling by the annular aperture was suggested and the flow equation through the aperture under the turbulence state was deduced using the boundary layer theory.是什么意思_A method to study the throttling by the annular aperture was suggested and the flow equation through the aperture under the turbulence state was deduced using the boundary layer theory.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句