m>Am>、increm>am>sing the linem>am>r velocity of the exhm>am>ust gm>am>ses B、chm>am>nging directions of exhm>am>ust gm>am>s flow C、decrem>am>sing the temperm>am>ture of the exhm>am>ust gm>am>ses D、m>am>ccelerm>am>ting the exhm>am>ust gm>am>s through m>am> reduced size orifice