查询词典 unsteady

The paper carried out combination calculation on two kinds unsteady flow problems of pressure water diversion of hydropower station (i.e. pressure fluctuation of water hammer and mass fluctuation of surge chamber), which changed many analytical error caused by considered these two phenomena separately, and such result meets the inherent rule of pressure water diversion system transient of hydropower station much more than before.

2实现了水电站有压引水系统中两种非恒定流问题(即水锤的压力波动和调压室的质量波动)的联合计算，改变了把这两种现象分开单独考虑所带来的分析误差，这样的计算结果更加符合水电站有压引水系统中过渡过程的内在规律。

According to the results of the tests, the unsteady aerodynamic was calculated at arbitrary angles of the tailplane and pitching frequency using the method of a data base model.

根据风洞实验结果，采用基于三角剖分数据库建模的方法，计算了任意平尾偏角和任意振动频率时的背景机动态气动特性，与实验结果比较表明，提出的有平尾偏角的建模方法能提供任意舵偏时的全机气动特性。

In order to improve the running stability of passenger train in strong crosswind ,its running condition on embankment while suffering from strong crosswind was simulated by using 3-D unsteady N-S equations and dynamic mesh technique,the relationships between aerodynamic force and train speed,crosswind speed and embankment tallness,and simulation result was compared with tunnel test result.

为了提高强横风作用下客运列车运行的稳定性，基于三维非定常方程，采用动网格技术，对强横风作用下的青藏线客运列车在路堤上运行情况进行了模拟，分析车速、风速及路堤高度与气动力之间的关系，并将计算结果与风洞实验结果进行对比。

In fact, tunnel fire is unsteady and variational because of throttling effect and buoyancy effect.

实际上，在节流效应和浮力效应作用下，隧道火灾是动态变化的。

He made a sad business of drawing with his unsteady hand, and a smothered titter rippled over the house.

他的手老是发抖，结果画得很糟糕，于是全场发出了一片憋住的嗤笑声。

He made a sad business of drawing with his unsteady hand, and a smothered titter ripple d over the house

他的手老是发抖，结果画得很糟糕，于是全场发出了一片憋住的嗤笑声。

But he made a sad business of it with his unsteady hand, and a smothered titter rippled over the house.

可他的手不听使唤，结果把图画得不象样，引得大家暗地里忍俊不禁。

To be unsteady; totter or waver.

不稳，摇摆：不稳定；摇动或摇曳

The other is about the calculation and experiment of the two-dimensional unsteady turbulent flow in an exhaust manifold.

二是对排气管的二维不稳定湍流流动进行了计算和实验研究。

Two and three dimensional steady/unsteady Euler codes are developed to study the hot streak in multistage turbine cascade.

采用商用软件对涡轮级的二维／三维、定常／非定常粘性流动进行了广泛的数值研究，详细分析了热斑现象的特点及一些影响因数。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了