exit n. 1.出口,出路,太平門。 2.【電學(xué)】引出端;排氣管。 3.外出;離去;死亡;【戲劇】退場(chǎng)(opp. entrance)。 make one's exit退出;退場(chǎng);去世。 vi. 1.退出,離去。 2.死,去世。 vi. 〔拉丁語〕 【戲劇】退場(chǎng) 〔cf. exeunt; opp. enter〕.
Effects of different fuel - air ratios and different geometric parameters of dual - stage swirler ( such as inner diameters of the primary swirl and secondary swirl passages , outer diameters of the secondary swirl passages , vane angle of the primary and secondary swirler , the distance of the flare exit from throat etc ) on combustion performances are studied experimentally . the experimental results show that radial profiles of the outlet gas temperature 、 combustion efficiency 、 emissions of co2 、 co and nox and lean blowout are affected with different degrees by the different geometric parameters of dual - stage swirler and the arrangement of primary holes 在不同油氣比下,不同的雙級(jí)旋流器幾何參數(shù)(例如:一級(jí)與二級(jí)旋流器出口內(nèi)徑d 、葉片安裝角、二級(jí)旋流器出口外徑d 、二級(jí)旋流器的喉道到出口截面的距離l和喉道前后的圓弧半徑r以及主燃孔孔布局等)對(duì)單頭部環(huán)形燃燒室的出口溫度分布、燃燒效率、貧油熄火油氣比以及污染物( co _ 2 、 co和nox )排放等燃燒性能的影響規(guī)律進(jìn)行了研究。