ratio n. (pl. ratios) 1.比,比率,比值;比例;系数。 2.【经济学】复本位制中金银的法定比价。 the ratio 3:2 (读作 the ratio of three to two )3对2之比。 arithmetical ratio 公差,算术比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 电流比,电流变换系数。 nutritive ratio 营养率。 vt. 1.用比例方式表达;求出…的比值;使…成比例。 2.将(相片)按比例放大或缩小。
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Above all , the surface of the gas turbine blade including stator and rotor heat transfer coeficience with no film cooling hole was studied with the main stream reynolds number of 150000 , 200000 50000 , 300000 , 350000 , 400000 . then , the heat transfer coefficience when all cooling holes opened and only one cooling hole opened was studied partly . and it ' s studied how the mainstream reynolds number , blowing ratio and the position of holes affect the heat transfer coefficience of the surface of blade 对导叶和动叶,都是先研究了在150000 , 200000 , 250000 , 300000 , 350000 , 400000雷诺数下,没有气膜冷却时的表面换热系数分布,然后研究了气膜孔全打开和只打开单排孔时的表面换热系数分布曲线,重点研究来流雷诺数,吹风比和不同孔位出流对换热系数分布的影响规律。