查询词典 tractor propeller

Because drank wine, he already forgot from the back still pulled a tractor the boss is very fast overtook BMW, proper they with 280 stridden speed whirlwind cars when, was discovered by a pointsman of roadside, want to bar had had not enough time, take out interphone at once, follow police of below one a section of a highway to contact: Hello, hello, hello, discover two Che Zaibiao cars, rate is very rapid, one is BMW, one is to run quickly 600, ask your block them, incorrect, it is 3 Che Zaibiao cars, return from the back closely follow a tractor, and the tractor still is hitting left-hand rotation Xiang Deng, miss overtake other cars on the road...

因为喝了酒，他已忘了后面还拖了一辆拖拉机老板很快的追上了宝马，正当他们以280迈的速度飚车的时候，被路边的一个交通警察发现了，想拦已经来不及了，连忙拿出对讲机，跟下一路段警察联系：喂，喂，喂，发现两辆车在飚车，速度非常快，一个是宝马，一个是奔驰600，请你拦阻他们，不对，是三辆车在飚车，后面还紧紧的跟着一辆拖拉机，并且拖拉机还打着左转向灯，想超车

Shandong Weifang drag Holdings Limited is the birthplace of small-wheeled tractor, but also the country's largest production base for small-wheeled tractor, a large state enterprises, mainly agricultural production wheeled tractor, With an annual output capacity of 200,000 units registered trademark "Wei drag" card.

山东潍坊拖拉机厂集团有限公司（简称山东潍拖集团有限公司）是中国小四轮拖拉机的发源地，也是全国最大的小四轮拖拉机生产基地，国家大型一类企业，主要生产农用轮式拖拉机，年产能力20万台，注册商标&潍拖&牌。

The definiens and working principle of controllable pitch propeller are introduced, the characters of CPP mechanism are summarized, and three types of shipping are concluded, which is applicable to equip with controllable pitch propeller by compared with pitch propeller. The control system of CPP usually adopts PID control, but the parameter of PID controller is adjusted inconveniently so as not to receive favorable result, therefore, the CPP control system based on fuzzy and neural network control is proposed so that improving the control effect. The result shows that the system design is feasible and effective.

介绍了可调螺距螺旋桨的定义及工作原理，并归纳了可调螺距螺旋桨推进装置的工作特性及特点，通过与定距桨进行的对比分析，总结出适用于可调螺距螺旋桨的三类船舶；目前调距桨控制系统一般采用传统的PID 控制方法，但由于PID控制器的参数不便于调节，不能取得良好的控制效果，从而提出了基于模糊神经网络控制的调距桨控制系统的设计，以提高调距桨在各种工况下的控制效果，仿真试验结果表明了调距桨控制系统设计的合理性。

So this paper takes the middle speed and small power of ship diesel engine as research object, and with the title of the matching research of ship diesel engine with screw propeller and the optimized design of cooling system to research the matching design of ship power system. And the main content of this paper is as the following:(1) The establishment of matching calculation platform of screw propeller and diesel engine. This paper starts with the analysis of balance of ship energy, and gets energy transfer relationship between ship diesel engine and screw propeller.

为此，本论文以中速小功率船舶柴油机为研究对象，以船舶机桨匹配与冷却系统优化设计为题进行船舶动力系统匹配设计研究，主要内容有：(1)船舶机桨匹配设计计算平台的建立本论文基于船舶能量平衡问题分析，推导螺旋桨与船舶柴油机之间能量传递关系，分析螺旋桨与柴油机的匹配设计。

So long as the flow field data, velocities and pressures, are obtained for the nominal wake at the propeller disk and for the propeller slipstream downstream of the propeller disk in the self-propelling condition, the energy income and expenditure terms of the propulsion system can be calculated by making use of this method.

此方法明确指出了提高船舶推进效率的途径，特别是利用船型造成大量、均匀和有预旋的伴流可因为增加系统能量来源。

It can provide verisimilar shift load for propulsive motor, and simulate the stable and dynamic property of the marine propeller that works under different conditions well and truly.Firstly this paper introduces the character of propeller and the effect between propeller and ship. Secondly provides a design of this simulating apparatus and selects some important parts according to the request of lab. Thirdly develops the simulating systems mathematical model to make engineering design and analysis.

本文首先分析了船用螺旋桨的工作特性以及与船体的相互作用；其次根据其特性制定了仿真装置的设计方案，并根据电力推进实验室的要求对仿真装置的主要部件进行了选择：然后建立了仿真系统的数学模型并对其进行工程设计及分析；最后详细介绍了仿真装置的DSP控制系统与主回路系统，并针对各部分的具体要求提供了相应的解决方案。

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。

Aiming at the disadvantages of the present machining method of the propeller, such as lower machining precision and efficiency, needing more time of clamping and limited machining scope, a new machining method the second-order osculating machining method has been presented and used in the manufacture of the propeller by analyzing the curve surface characteristics of the marine propeller blade.

针对目前螺旋桨加工中存在的加工精度和效率较低、需多次装夹、适用范围有限等缺点，在分析螺旋桨桨叶曲面特征的基础上，提出了基于圆柱形刀具二阶密切加工螺旋桨的方法。

The usage technique of radar for high-speed ship s to prevent collision in Three Gorges reservoir;2. Research on Modeling and Simulation of High-speed Ship CPP Propulsion System;3. Based on three typical high-speed ship (high-speed monohull ship,planning hydrofoil craft,wave-piercing Catamaran),a mathematic models of high-speed ship ′s propulsion system(common screw propeller,adjustable-pitch propeller, water-jet propeller) and intelligent control system are established the simulation with the help of Matlab/Simulink is realized.

以三种典型的高速船(高速单体船、翼滑艇和穿浪艇)为例，建立了其推进(普通螺旋桨、可调螺距螺旋桨及喷水推进)系统及智能控制的数学模型，并在Matlab/Simulink上实现仿真；建立了推进系统的优化数学模型，编制了优化算法(混沌算法、遗传算法和粒子群算法)程序，实现了智能推进系统的优化设计；最后，运用Matlab/GUIDE进行界面设计，编制了高速船智能推进系统仿真与优化软件，实现了良好的人机互动。

History propeller aircraft, including piston propeller aircraft and turboprop aircraft, piston aircraft engines for propeller-type, which is the most primitive form of power.

螺旋桨史飞机，包括活塞螺旋桨式飞机和涡轮螺旋桨式飞机，飞机引擎为活塞螺旋桨式，这是最原始的动力形式。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！