查询词典 propulsion

This paper presents the design of control and mathematical modeling and computing of a semi-physical simulation system of electric podded propulsion, which is been developing in Shanghai Maritime University.

介绍了上海海事大学正在研发的半实物吊舱式电力推进仿真系统控制方案和仿真算法的设计。半实物仿真系统整合了物理硬件设备和仿真软件，对改善非线性系统在大工况变动下实时仿真的快速性和精确性，以及在控制方案设计、船桨数学模型的建立和仿真算法的选择等方面都有其特殊的作用

The author refers to lots of literatures and datum on Internet, observe and study on board, understands the structure and operation process of the IPS podded propulsion.

作者查阅了大量文献及互联网资料，并多次上船观摩，学习，掌握了第一手相关资料，明确了吊舱式全电力推进系统的工作与操作原理。

The author uses the equipments in lab design the speed subsystem of podded propulsion, and use the SIMENS S7-200 series CPU 214 design the PID program.

作者利用实验室的设备设计了下位机吊舱主推进调速系统的电路，用CPU214 PLC完成了调速系统PID程序的设计。

In infra side, the author chooses the SIMENS CPU 214 PLC to control the speed subsystem of the podded propulsion, and chooses emulator PLC to control other devices such as the generator, ship power station. The emulator PLC can simulate the real PLC, and provide the data for zutaiwang6.5 to finish the supervision and control.

在下位机设计方面，吊舱主推进调速系统控制器件选用西门子S7-200系列CPU214 PLC；而发电机组、船舶电站等其他部分的控制器件选择组态王6.5中亚控仿真PLC控制完成，仿真PLC可以模拟PLC为组态王提供数据，很好的实现其监控功能。

We have established following unique intellectual property positions :"contra-rotating propeller in nozzle"、"shafting anti-twist labyrinth contra-rotating propeller"、"hydrofoil podded propulsion with contra-rotating propeller"and so on.

公司拥有多项自主知识产权，&全回转对转桨前后置导管推进装置&；&迷宫切割式轴系防缠绕推进装置&；&吊舱型对转桨牵引式水翼组合推进装置&等专利技术。

Through the studies on the regeneratively cooled scramjet structure of tomorrow's advanced propulsion system of this paper, one thermal evaluation tool was developed. This dissertation provided the necessary means for the design of regenerative cooling channels of the scramjet.

通过本文围绕未来先进推进系统——超燃冲压发动机燃烧室再生冷却结构的研究，发展了热分析计算方法，初步建立了冷却通道的设计方法和工具。

Through the studies on the regeneratively cooled scramjet structure of tomorrows advanced propulsion system of this paper, one thermal evaluation tool was developed. This dissertation provided the necessary means for the design of regenerative cooling channels of the scramjet.

通过本文围绕未来先进推进系统——超燃冲压发动机燃烧室再生冷却结构的研究，发展了热分析计算方法，初步建立了冷却通道的设计方法和工具。

She felt somewhat rudderless, especially in the breaststroke, which requires a snapping of the legs for propulsion.

到头来，我几乎是在不停地打转。

Arcjet is one of the highlight of electric propulsion investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability.

作为电推进的一种方式，电弧加热发动机以较高的推力/功率比、推力密度、中高的比冲、良好的系统继承性和可靠性等特点，成为当前国际研究和应用的热点。

Arcjet is one of the highlight of electric propulsion investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability.

电弧加热发动机作为电推进的一种方式，以其较高的推力/功率比、推力密度、中高的比冲、良好的系统继承性和可靠性等特点，逐渐成为当前国际电推进研究和应用的热点。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！