气缸

Where the entire cycle of events in the cylinder requires four strokes, the engine is called a four-stroke-cycle engine, or a four-cycle engine.

发动机气缸中的全部工作过程分为四个行程的，叫做四行程循环发动机，或四循环发动机。

The pneumatic friction clutch and brake of the mechanical press based on the former analysis is also investigated. The main research work is shown as follows:(1) The nonlinear mathematical model of the system is established, and the valve characteristics and the friction force of the system are tested.

本文主要进行了以下几个方面的研究： 1气动伺服系统是一个具有较强非线性的系统，本文建立了该系统的非线性数学模型，并对气缸的摩擦力及阀的特性进行了实验研究。

Our company specializes in manufacturing precision slender axis oil tanks and so on, using precision cold drawing, grinding and polishing high-precision manufacturing of advanced technology, the technical indicators are in line with and exceeded the national standard, can be used directly in the fuel tank, cylinder piston rod, and is widely used in hydraulic pneumatic, textile printing and dyeing, printing guide, die-casting machines, injection molding machine guide; fax machines, copiers, high-speed mimeographs, printers and other modern office machines and other precision guided fine-axis major axis for the parts industry and products.

我公司专业生产精密细长轴油缸等，采用精密冷拔、精磨和高精度抛光的先进工艺制造，各项技术指标均符合并超过国家标准，可直接用于油缸、气缸活塞杆，并广泛应用于液压气动、纺织印染、印刷机导轨、压铸机、注塑机导杆；传真机、复印机、高速油印机、打印机等现代办公机械导轴等一些精密细长轴为部件的行业和产品。

These plugs should be gapped at 0.020, which will ignite all the fuel and air mixture of the cylinder hiking up the acceleration and speed along with an easy start.

这些插头应在0.020缺口，这将点燃所有的燃料和空气在气缸加速了远足的混合物和速度沿容易启动。

It suggests that the proposed graphical method is of universal meaning to system of bars with cylinder.

研究表明，这种图解法对该类带气缸的连杆机构设计具有普遍的借鉴意义。

After the background of problem has been described, graphical method is used to determine the stroke of cylinder, and then approximation method is used three times to get the answer.

在介绍了问题的背景后，使用图解法首先确定气缸的行程及其规格，然后通过从一边试探的方式，三次试探就得到了问题的解答。

Low ash results in valve recession while high ash leads to valve guttering or torching and excessive piston and combustion chamber deposit.

灰分过低，造成气门磨损加剧；灰分太高，造成气门熔损及燃烧室和活塞沉积物增加，严重时导致活塞环及气缸套磨损。

Simple harmonic curve is a perfect profile for cylinder inner wall. To decrease the leakage through the clearance of rotor and cylinder, a modified simple harmonic curve with sealed arc is developed.

简谐型线是旋叶式压缩机缸体比较理想的型线，为减小气缸与转子间的径向泄漏，在简谐型线的基础上开发出带过渡圆弧的简谐型线，称之为修正型线。

Excessive block or head metal removed to increase compression.

缸体或气缸头移动过大造成压缩比的增加

Numerical simulation by Matlab for the new hypocycloid energy transformation mechanisms was done by means of the four-order Runge-kutta's method. The result shows that the simple harmonic and rectilinear motion of piston in the new mechanism make the engine working more stable. The peak acceleration is around 25% lower in the new mechanism than that in the conventional slider-crank mechanism. And the output speed is much higher at the same identical mean effective pressure and same load torque. And then the output power of the engine is improved.

基于四阶Runge-Kutta法，运用MATLAB进行了仿真验证，结果表明，新型内摆线能量转换机构的活塞做完全简谐直线运动，运动更加平稳；活塞加速度峰值比传统曲柄滑块机构小25%；在相同的气缸平均等效压力和负载转矩下，具有较高的输出转速，提高了内燃机的输出功率。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。