片语

void area fraction空泡面积份额

local void fraction局部含气率

external void fraction外部空隙分率

core void fraction堆芯空泡份额

steam void fraction汽泡份额

void volume fraction微孔洞体积分数

volume void fraction体积含气率

void fraction waves空隙率波

internal tariff void fraction内部空隙分率

英汉例句

• the void fraction in downward gas oil two phase flow in vertical tube is measured with the combined method of horizontal downward vertical tube for the two flow regimes(bubbly and slug flow).

  采用水平—下降管组合法测量了垂直下降管内油气两相流动在泡状和弹状流下截面含气率的值。

• the method gives results which show quite a large difference between distribution of void fraction in froth regime and that in spray regime along the height above the tray.

  试验结果表明含气率在泡沫状态下与喷射状态下沿着塔高的分布有明显的差别。

• the calculated results of void fraction and transition segment length agree well with the experimental data.

  含气率以及过渡段长度分布的计算值与试验值符合较好。

• a method of using metal probe for measuring the void fraction at any point in gas-liquid two-phase flow on sieve tray is described.

  用金属探针法测量塔板上气液两相流中某些点的含气率。

• void fraction and friction pressure drop measurements are made for an adiabatic , horizontal two-phase flow of air-water mixture across a vertical tube bundle.

  对空气-水两相混合物在折流板壳管式换热器壳侧沿水平方向横掠垂直管束的截面含气率及摩擦压降进行了实验研究。

• the method for predicting void fraction and pressure drop is then developed.

  然后再分析预测孔隙率和压降的模型。

• the void fraction of annular two-phase flow inside cylinder is analyzed.

  对圆管内环状两相流的空泡份额进行了分析。

• element approach is employed, and the amount of each component holdup is calculated element by element with a proper void fraction model.

  将换热器分解成若干微元，选用恰当的空泡数学模型，计算各组分在换热器中的滞留量。

• the change regularities on void fraction and density of powder material were revealed mathematically.

  同时，运用数学的方法揭示了粉体的空隙率和粉体密度的变化规律。

• this paper describes an experimental and theoretical research on the void fraction of two-phase flow in horizontal helically coiled tubes .

  本文从试验和理论两方面详细地研究了卧式螺旋管内气液两相流截面含汽率的分布与变化规律。

• void fraction distribution characteristics in rod bundle with grid spacer is one of the important aspects in reactor thermal hydraulic characteristics research.

  带定位格架棒束通道内的空泡份额分布特性是反应堆热工水力特性研究的重要内容。

• the calculation of the void fraction in subcooled boiling is different from that in saturated boiling, it is characterized thermal in equilibrium.

  欠热沸腾下的空泡份额计算不同于饱和沸腾，具有热不平衡特点。

• the acquired typical void fraction signal is presented and qualitative discussion to the dynamic process and mechanism of flow is hence delivered.

  定性讨论了不同流型下典型动态时序信号的差别与相应的流动现象与机理。

• the effects of gas flow rate and rotating speed on the fluid field, local void fraction distribution and bubble size distribution were investigated.

  考察了不同通气量和操作转速下气液搅拌槽内流体流动，局部气含率和气泡尺寸的分布规律。

• in this paper, the prediction of void fraction and pressure drop for upward gas-liquid annular flow in a vertical annulus is studied.

  对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究。

• then, the boiling freon two-phase flow void fraction was determined by single threshold method, and compared with numerical heat transfer computation.

  空泡率由单阈值方法确定，并与传热数值计算结果进行了比较。

• the oscillating lift coefficient increases with the growth of the void fraction in such a way that it increases slowly before the void fraction up to 0.1 and after that, increases faster.

  脉动升力系数先随含气率的增大而缓慢增加，在含气率增大到0.1后增大得较快。

• the conductivity probe was used to measure the instantaneous local void fraction in the horizontal pipe and the illustrative picture of probability density of flow pattern translation is obtained.

  使用自行设计、制作的电导探针测量系统，测量了水平管内瞬时、局部空隙率，并且得到流型转变的特征密度概率图谱。

• the definition of the void fraction and the calculation formula for the void fraction determining were given.

  给出了孔隙率的定义和确定孔隙率的方法。

• the results show that the effect of a void fraction distribution on this construction of capacitor is not evident.

  结果表明，电容法的主要影响因素——空泡分布对这种结构的电容器影响不大。

• the general expression of friction factor for gas phase is derived, then the new expressions of void fraction and velocity ratio of gas to liquid are given and discussed.

  首先推导出气相摩擦乘子的一般表达式，然后求得空泡份额与滑速比的解析式，并进行了分析讨论。

• the nvg model and the true mass quality model proposed by the authors can be used to calculate the void fraction for the calculation of pressure drop in low-flow sub-cooled boiling correctly.

  笔者提出的真实含汽率模型和凈蒸汽产生点（nvg）空泡率模型可用于蒸汽-水强迫循环低流速过冷沸腾压降计算。