对交叉缩放椭圆管进行了实验和数值研究，给出了换热和沿程阻力系数实验拟合关联式。
An experimental and numeric study was carried out for the alternating elliptical axis tubes. The fitted correlation was derived for the experimental heat transfer and resistance coefficients.
如突破此位则有望涨至55日及100日简单移动平均线交叉位置81.90 - 82.00区域，该区域也为下一阻力位。
Above this may see towards the 55 and 100-day SMA's which currently converge around the 81.90-82.00 area as the next level of resistance.
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