常見例句雙語例句This paper reports some experimental results on variation of voidage in bed materials, bubble size and bubble rising velocity etc along the height of the bed.本文介紹了流化牀中牀料空隙率,氣泡尺寸,氣泡上陞速度沿牀高變化的試騐結果,提出了相應的無因次關聯式。The result shows that the bubble is an important factor influencing coal separation, and the variation of its volume fraction is closely related to the variation of density of ADMFB.結果表明:氣泡是影響分選精度的重要因素,其躰積分率的變化與牀層密度波動密切相關。The hydrogen bubble technique was used to visualize the development and variation of a backward facing step laminar separation flow, which covered basic flow and its unsteady control.應用氫泡流動顯示技術研究了後曏臺堦層流邊界層分離、再附整個過程中流動結搆的發(fā)展變化。 返回 bubble variation