困难的工作

Of course, the mathematical proof of ergodicity, even in a hard ball system with only few degrees of freedom, is still a difficult task.

当然，即使对具有很少自由度的硬球系统，遍历性的数学证明也仍然是一件非常困难的工作。

Herriot loved the beautiful countryside , but treating large animals was very hard work .

赫里奥特喜爱美丽的农村，但医治大的动物是很困难的工作。

It is difficult to estimate indent depth in theory.

从理论上预测受静态压痕力作用的复合材料层压板的损伤参数是一项困难的工作。

When Melba fights for her rights, she realizes that it really is a difficult job, but also that someone has to do it, so why not her?

当梅尔巴为自己的权利斗争的时候，她意识到这是一个非常困难的工作，而且必须要有人去做，所以为什么她不自己做？

It is often difficult to work out whether your baby is hungry, cold, tired or in need of a nappy change.

这是往往是困难的工作，是否您的宝宝是饥饿，严寒，疲倦或在需要一个尿布的变化。

At the age of 23, Paganini composed the most difficult work for violin ever in the 24 Caprices.

在23岁，帕格尼尼组成的24首随想曲的小提琴最困难的工作下去。

However, it is a very difficult work to detect these periodic orbits due to their unstable properties.

然而，由于这些周期轨道本身具有的不稳定性，对它们的探测成为一件较困难的工作。

It is quite complex and difficult to simulate bolt pretension accurately in the analysis of bolt joint by finite element method.

在螺栓联接的有限元分析中准确模拟螺栓的预紧力是一项复杂而困难的工作。

And then there's a lot of hard work preparing his Sunday sermon.

然后就是准备他的周日的证道，一项很困难的工作。

Parameter's calibrations of watershed hydrologic forecasting models and flood real-time correction are very important and difficult jobs.

流域水文预报模型的参数率定和实时洪水校正是洪水预报中非常重要和困难的工作。

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