其对应的音速与汽液两相流体的空泡率、压力及液相密度等因素有关。
Then the corresponding sonic velocity of the two-phase flow is determined by the void ratio, pressure and density of the liquid phase.
误差分析表明,这种测量方法在低空泡率条件下测量误差一般不超过10 %,它是一种低成本、高精度的绝对测量方法。
Error analysis showed that the measurement error is usually less than 10% for low void fraction flow. So this is a lowcost and accurate measurement method.
空泡率是汽液两相流动的基本参数之一,而已有过冷沸腾空泡率计算方法研究以高质量流速为主,且大量文献报道现有空泡率模型难以适用于低流速过冷沸腾工况。
Void fraction is one of the basic parameters in steam liquid two phase flows. To date, the study of methods for calculating subcooled boiling void fraction mainly focused on high mass flow rates.
具有磨玻璃征,含多个空泡或呈蜂窝征的病灶,在肺泡癌中出现率较高。
The ground glass, vacuolus and honeycomb sign had higher incidence in this tumor.
结果:麻黄汤能促进腋窝部和足趾部皮肤汗腺的分泌,腋窝部皮肤汗腺空泡发生率较足趾部皮肤高。
Results: MHT can accelerate the diaphoretic function both on axillary and plantar sweat gland in rats, incidence of vacuole of axillary sweat gland is higher than that of plantar sweat gland.
该方法在计算大尺寸空泡的后向散射时不受微粒尺寸参数和折射率的限制,且避免了复杂的级数形式,与基于米散射理论或德拜级数展开的算法相比,具有更快的运算速度。
The calculation process of the method is independent of size parameters, and it is more stable and faster than the traditional methods based on Lorenz-Mie theory or Debye-series expansion.
该方法在计算大尺寸空泡的后向散射时不受微粒尺寸参数和折射率的限制,且避免了复杂的级数形式,与基于米散射理论或德拜级数展开的算法相比,具有更快的运算速度。
The calculation process of the method is independent of size parameters, and it is more stable and faster than the traditional methods based on Lorenz-Mie theory or Debye-series expansion.
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