火箭发动机

The ion engine may be used to maintain the orbit of the International Space Station within the next five years, and could lay the groundwork for rockets that could one day travel to Mars in about a month.

离子发动机或许会在五年内被用于维持国际空间站运行轨道，为将来一个月左右抵达火星的新型火箭的问世奠定基础。

A three dimensional Navier Stokes equation is solved with a standard k ε turbulent model. Two experiments were carried out and the total pressure of jet flow was tested. Based on the tests, the differences between the calculated and test results were found to be 3% and 7% respectively. It proved that the results of calculation can well be used in engin...

研究采用数值计算和试验测量相结合的方法，控制方程为三维、雷诺平均 Navier- Stokes方程及 k-ε二方程的紊流模型，并且对该发动机进行了燃气流场的测试，对流场中的总压强进行了直接测量，进行了两次试验；在两次测点位置，试验结果与数值计算值相差分别为 3%和 7%；证明了对双喷管火箭燃气射流流场的数值计算具有了较好的精度，计算模拟结果可以用于工程设计中

The aircraft uses cascaded turbojet engines to achieve the take-off and landing from a normal airport;(2) V-2 rocket aircraft by 11 Space Institute in Beijing.

航空器使用级联涡轮喷射发动机从常规飞机场实现起飞和降落；（2）北京第11空间研究院V-2火箭。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。