进行: be in progress; be underway; ...下降: descend; go or come down; dr ...程序: procedure穿云下降: come down through the overcast; descend through cloud; descend throught cloud; descent through cloud; letdown穿云下降飞行: let down仪表穿云下降: an instrument letdown下降程序: descent program下降程序图: let-down chart穿云下降进场着陆示意图: letdown-piston进入穿云下降的转弯方向: penetration turn direction喷气式飞机穿云下降转弯: jet penetration type turn水上迫降程序: ditching procdeure; ditching procedure钻具组升降程序: drill-string tripping云下: below cloud; kumoshita; unge穿云: bore; break cloud; break out of the overcast; break the clouds; breakout对未穿线的树进行穿线: thread an unthread tree进行自转下降: make an aviation立即进行下降: to make immediate descent进行爬升和下降: to carry out a climb and descent在耶路撒冷和贝鲁特之间进行穿梭: shuttle between jerusalem and beirut云下的: sub-cloud云下里: unha ri; unha-ri在云下: below clouds进行程序起诉: proceeding进行诉讼程序: proceed
