查询词典 critical velocity

The results showed that from the measurement of the time ratio of metal contact,the transition of lubrication status can be monitored and the corresponding critical transition velocity can be detected.

根据测得的金属接触时间比率－滑动速度曲线的变化趋势，可以清楚地判断出润滑状态的转化及对应的临界转化速度。

Critical flow velocity is an important factor in slurry pipeline transportation.

引言在浆体管道输送中，正确确定一个安全经济的输送流速———临界流速非常重要。

The effect of some parameters of the system on the values of critical flow velocity is discussed according to the analytical expressions derived.

利用临界流速公式系统地分析和讨论扭转刚度、重力系数和轴向预紧力对管道临界流速的影响特性。

And the amount of maintained water in the channel increased until gas velocity above the critical value.

只有大于该流速值，提高流速才能缓解流道内的液态水积累。

SiC is a very promising material for high temperature, high power, high frequency, and radiation application because of its superior properties such as wide band gap, high critical breakdown field, high thermal conductivity and high saturation electron drift velocity.

SiC材料具有宽禁带、高临界击穿电场、高热导率、高载流子饱和漂移速度等优良特性，这些特性决定了它在高温、大功率、高频和抗辐照等方面的有着广泛的应用前景。

In this paper, the variation of Roche's critical equipotential surface (namely the surface of zero velocity corresponding to the inner Lagrangian point, the constant of Jacohian integral being C = C2) in some close binary systems is discussed.

本文具体讨论了密近双星系统动力演化中洛希临界等位面(即过第二直线秤动点的零速度面)所涉及到的零速度面的变化问题。

Taking advantage of gauge transformation and dipolar approximation, we qualitatively derive rotating Bose-Hubbard model.Then finite temperature phase boundary between superfluid phase and normal state in rotating Bose-Hubbard model is analytically derived by studying the stability of normal state in rotating bosonic optical lattice.We also analytically prove that as the function of rotation angular velocity the oscillation of critical hopping matrix directly follows the upper boundary of Hofstadter butterfly.

4通过做一个规范变换和偶极近似，定性地推导了旋转Bose-Hubbard模型，并且通过研究正常态不动点的稳定性推广了旋转Bose-Hubbard模型的零温相图到有限温度的情形；另外根据系统有效的能带宽度与旋转速度的关系(Hofstadter蝴蝶)，得到了系统的临界跃迁矩阵随旋转速度的改变展示谐振行为的结论。

The critical wind velocity and frequency of luting of ideal plate are also calculated in this dissertation nd its results are in conformity with the analytical ones.

本文还计算了理想平板的颤振临界风速和频率，与理论结果相比，吻合较好。

The recommendatory formulas of the critical hoist flow velocity and pipeline resistance were presented for the engineering by comparing the previous studies.

通过比较已有的研究成果，本文总结了适于工程实际中使用的粗颗粒垂直管水力提升临界提升流速和管道输送阻力的计算公式。

Sand threshold;cusp catastrophe;critical friction velocity;Shields parameter;particle Reynold number

风沙起动；尖点突变；临界起动摩阻风速；希尔兹参数；颗粒雷诺数

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。