机械作用

The market demand for tobacco machinery is affected by the factors concerning with the different aspect of cigarette factory operation, their function varies with the different management idea and cigarette market change.

烟草机械的市场需求受到卷烟企业运作各方面因素的影响，它们的作用也因企业不同的管理理念和卷烟市场变化而异。

Based on the work flow of charging equipment, three worst work conditions of the clack box were defined. Then, based on thermal-structure coupled theory, the thermal-structure coupled of the clack box which suffered from mechanical and temperature load was analyzed using the powerful software ANSYS. The clack box's temperature field and stress field as well as the stress spectrum of danger area in actual working condition were obtained. Finally, based on crack initiation and crack extension theory, the clack box's fatigue life was predicted.

摘 要：根据装料设备的工作流程，确定阀箱3种最不利的载荷工况；基于热－结构耦合理论并利用有限元分析软件ANSYS研究阀箱在温度载荷和机械载荷作用下的热－结构耦合问题，得到实际工况下阀箱的温度场、应力场以及危险部位的应力谱；依据裂纹萌生和扩展理论对阀箱进行疲劳寿命预测。

The main research contents of the dissertation are given. In chapter 2, the machining principle of arc-typed non-circular section, controlling model of tool path, and the equations of section contour curve are studied systematically and deeply.

第一章论述了开展多面形非圆曲面数控加工技术研究在现代机械制造中的重要意义和作用，并详细分析和评述了有关理论和技术的研究现状和发展趋势，从而确定了本论文研究工作的主要内容。

In this topic design food machinery uses the high.pressured viscolizer, its principle of work is: Uses the electric motor after the level V belt transmission deceleration, leads crank revolving, the crank throw crank causes with in the crank hinge connecting rod impetus piston cylinder piston to make the straight reciprocating main motion in the piston cylinder, thus the impetus level hydraulic valve and two level of hydraulic valve function, produces the strength attracts, the row of mix material, achieves the even mix the goal.

本课题设计食品机械中用的高压均质机，它的工作原理是：采用电动机经一级三角带传动减速后，带动曲轴旋转，曲轴推动曲柄使与曲柄铰接的活塞杆带动活塞缸中的活塞在活塞缸中作往复直线运动，从而推动一级液压阀和二级液压阀的作用，产生的力吸、排混合的物质，达到均匀混合的目的。

In this topic design food machinery uses the high-pressuredviscolizer, its principle of work is: Uses the electric motor afterthe level V belt transmission deceleration, leads crank revolving,the crank throw crank causes with in the crank hinge connecting rodimpetus piston cylinder piston to make the straight reciprocatingmain motion in the piston cylinder, thus the impetus levelhydraulic valve and two level of hydraulic valve function, producesthe strength attracts, the row of mix material, achieves the evenmix the goal.

本课题设计食品机械中用的高压均质机，它的工作原理是：采用电动机经一级三角带传动减速后，带动曲轴旋转，曲轴推动曲柄使与曲柄铰接的活塞杆带动活塞缸中的活塞在活塞缸中作往复直线运动，从而推动一级液压阀和二级液压阀的作用，产生的力吸、排混合的物质，达到均匀混合的目的。

Media Help Everyday we are exposed to the steam often divided into two, one, the boiler steam - saturated steam 2, thermal power plants out of steam - superheated steam 1, a relatively stable temperature and pressure saturated steam, temperature lower than 250 ℃, working pressure lower than 1.6Mpa 2, superheated steam temperature and pressure changes of a high base temperature up to 400 ℃, working pressure is lower than 4.0Mpa For the first steam, we usually use soft sealing steam solenoid valve as follows: Structural characteristics This valve is a valve and Balance valves main valve by the two vice components with the second open valve Pilot solenoid valve Heat: electromagnetic part, some with special high temperature seals and sealing materials, electrical materials, and apply a variety of insulation measures Wear: selection and reasonable Globe Valves guidance suite valve cup and clever use of fluid lubrication, reduce wear, increase life expectancy Resistance to condensation: condensation of steam pipeline valve on the steam water is an important factor in action, the valve will not affect the condensation water Other uses - soft sealing steam solenoid valve This series solenoid valve can Safety valves be widely used in textile, printing, chemicals, plastics, rubber, pharmaceutical, food, building materials, machinery, electronics, surface treatment and research sectors and bathroom, dining room, air conditioning automatic control system.

介质说明日常生活中我们接触到的蒸汽常分为两种，1、锅炉蒸汽-饱和蒸汽 2、热电厂出来的蒸汽-过热蒸汽 1、饱和蒸汽温度压力相对稳定，电动阀门执行器温度低于250℃，工作压力低于1.6Mpa 2、过热蒸汽温度压力变化基数较大温度最高可达400℃以上，工作压力则低于4.0Mpa 对于第一种蒸汽，我们通常会选用氧气专用阀、铜阀门软密封的蒸汽电磁阀如下：结构特点本阀是由副阀和主阀两大部件构成的先导式二次开阀的电磁阀耐热：电磁部分、密封件部分用特种耐高温电工材料和密封材料，并应用了各种隔热措施耐磨：选材合理，电站阀门阀杯和导向套间巧妙地利用流体的润滑作用，减少磨损，提高寿命耐冷凝：蒸汽管道的冷凝水是影响蒸汽电磁阀动作的重要因素，本阀则不受冷凝水影响其他用途-软密封蒸汽电磁阀本系列电磁阀还可广泛地应用平衡阀纺织、印刷、化工、塑料、橡胶、制药、食品、建材、机械、电器、表面处理和科研部门以及浴室、食堂、空调等自控系统。

Although some fifteen Divisions were tasked with defending the line during its life, this set of four figures specifically represent Gebirgsjger or Mountain Infantry troops.

只有18辆突击虎被制造出来，它们在战争中起到的作用非常有限，突击虎证明是卓越的防御性武器，但是行动缓慢且机械可靠性不高。

And direct-driven flour mills, paper mills, carton plant, hardcover paper companies, machinery manufacturing, seasoning, transport companies, such as hundreds of related businesses to promote local economic development in cities and towns have played an important role.

并直接带动的面粉厂、造纸厂、纸箱厂、精装纸公司、机械制造厂、调味料公司、运输公司等相关企业数百家，为促进地方城镇经济发展起到了重要作用。

The mechanism of plastic drain board as well as its material composition,construction machinery and construction technology are introduced in the paper.

介绍了塑料排水板的作用机理以及它的材料组成、施工机械以及施工工艺。

Different kind space cameras use different image motion compensation methods and Drift Angle controls respectively.Applications of Drift Angle control in mechanical image motion compensation and electronic image motion compensation are introduced and analyzed in this paper.

不同类型的空间相机有不同的像移补偿方法，也就有不同的偏流角控制方法，本文对机械像移补偿法、电子学补偿方法等像移补偿方法中的偏流角控制及作用进行分析。

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。