机械作用

"Hydraulic safety valve" is widely used in hydraulic power systems and hydraulic equipment of safety devices, pressure devices can be limited, is a special valve, which is different from the conventional valve, the traditional use of mechanical valves metal spring as a driving force, can only be limited to low pressure, encountered more BALANCING VALVES than 10Mpa pressure limit pressure can do to increase the volume of pressurized design, the traditional role of the high-pressure valves and high pressure hydraulic power systems and hydraulic equipment The limit pressure of necessity is bulky and complicated structure, difficult to manufacture large, high production costs; in the course of the fatigue of metal spring parameters change fluctuating pressure limiting Ambassador to regular revision to ensure the normal use.

&气动液压安全阀&是目前广泛应用于液压动力系统和液压设备中的安全装置，也可以作限压装置，是一种特殊的阀门，它不同于传统的阀门，传统阀门用机械金属弹簧为动力，只能限中低压力，遇到超过10Mpa以上的压力限压，闸阀只能做加大体积的增压设计，因此传统阀门作用于高压和超高压的液压动力系统和液压设备的限压时必然体积笨重，结构复杂，制造难度大，产品成本高；在使用过程中金属弹簧的疲劳变化大使限压参数波动大，要经常调整才能保证正常使用。

"Hydraulic safety valve" is now widely used in hydraulic power systems and hydraulic equipment in the safety device could also serve as limited pressure device, is a special valve, unlike conventional valves, conventional valves with mechanical metal spring as a driving force, can only be limited to low pressure, the pressure encountered over more than 10Mpa limit pressure can do to increase the volume of the Safety Overflow Valve booster design, the traditional role of the high-pressure valves and high pressure hydraulic power systems and hydraulic equipment The limit pressure of necessity is bulky and complicated structure, difficult to manufacture large, high production costs; in the course of the fatigue of metal spring parameters change fluctuating pressure limiting Ambassador to regular revision to ensure the normal use.

&气动液压安全阀&是目前广泛应用于液压动力系统和液压设备中的安全装置，也可以作限压装置，是一种特殊的阀门，它不同于传统的阀门，传统阀门用机械金属弹簧为动力，只能限中低压力，遇到超过10Mpa以上的压力限压，只能做加大体积的增压设计，因此传统阀门作用于高压和超高压的液压动力系统和液压设备的限压时必然体积笨重，结构复杂，制造难度大，产品成本高；在使用过程中金属弹簧的疲劳变化大使限压参数波动大，要经常调整才能保证正常使用。

Wear resistance and wear mechanism of carburized layer of meta-bainitic steel in pin-on-disk abrasive wear and impact abrasive wear were investigated.

研究了准贝氏体钢销盘磨料磨损和冲击磨料磨损的耐磨性和磨损机制，确定了回火温度对耐磨性的影响，探讨了残余奥氏体的机械稳定性及其对耐磨性的作用。

Clays are produced by mechanical and chemical weathering and primarily colloidal in size.

粘土是由机械和化学的风化作用形成，主要是胶粒大

This is due to the movement of the dipoles of the latter is strongly restricted by certain solvent-polymer interaction.

此一结果亦证实了动态机械性质结果所显示NC/DOP凝胶中高分子与溶剂间有较强的作用关系。

However, the activation of ERKs was significantly suppressed after the COS7 cells were transfected with C289A and Q257A. The result indicated that C289A and Q257A were the stretch sensitive region.

结果提示AT1受体上位于257位的谷氨酰胺和289位的胱氨酸在机械牵张引起的AT1受体激活中起了重要作用。

Maglev health beauty weight loss health beds is a Magnetic support for a complex electronic and mechanical high-tech products of the alternative, suspended in the air bed, its role as a magnet beneath the bedstead and bed base interactions of magnets bedstead bed base and leave them suspended, and then to bed magnetic base of the bedstead can transform the whole magnetic vibration; before and after; around; rocking movement, etc.; in the bedstead campaign process, without any linkage, or gears or belts, twisted Lian passive body without motor or hydraulic arm of the initiative institutions, and its actuation process without any oil or exhaust noise and pollution generation, magnetic levitation force bed, and consumption of reactive small, control is simple, safe and reliable, such a novel concept, design reasonable, full-featured, performance, a wide range of applications; can be described as a collection: physical therapy, fitness, leisure, sleep and other motor function as one design.

磁悬浮养生美容减肥健康床是一种以磁力支撑，为一种电子与机械复合之另类高科技产品，悬浮於空气中的床，其作用为床架下方的磁体与床底座磁体相互作用而使床架离开床底座而悬浮起来，再以床底座磁极之变换而使床架能做上下磁震动；前后；左右；摇摆等运动；在床架的运动过程中，无需任何连杆，或齿轮或皮带，绞炼之被动机构，亦无需马达或油压臂之主动机构，且其作动过程中无任何噪音与油污或废气的污染产生，磁悬浮床作用力大，耗功小，控制简便，安全可靠，此种构思新颖，设计合理，功能齐全，性能优良，应用广泛；可谓集合：理疗，健身，休憩，睡眠等多种运动功能为一体的设计。

Turboexpander is the key of cryogenic machine, and gas bearing is the most important component of it. Supercharger is used to absorb the power exported by turboexpander for the purpose of enhancing the efficiency, and supercharger can also enhance the pressure.

透平膨胀机是低温机械的关键设备，高速气体轴承又是其核心部件；增压机回收透平膨胀机输出的轴功，既可以提高其经济性，又能起到增压的作用，是目前小型透平膨胀机发展的趋势。

All mechanical loads are considered, including internal pressure, gravity, wind load and earthquake load, in which the modal analysis of the drum, functional wind load and temporal analysis for earthquake are the innovations of this paper.

分析焦炭塔在机械载荷，如内压、自重、风载和地震载荷作用下的应力情况，其中塔体的模态分析、风载的函数加载和地震载荷的时程分析是本文的创新。

The static and dynamic characteristics of the beam of a gantry-type machining center are analyzed by means of ADAMS and ANSYS. Considering effect of gravity and cutting forces, the static deformation of the beam is obtained after calculating the interacting forces between the guide and the slide block by ADAMS. Moreover, the contact parameters of the guide surface are acquired by dynamic tests and parameter identification, then they are applied to the simulation model of the beam-slide box system, whose natural frequencies and modal shapes are achieved by modal analysis. Furthermore, the effect of changes of the contact parameters on the dynamic behavior of the beam-slide box system is also investigated.

对一种国产龙门式加工中心的横梁关键部件，采用机械系统多刚体动力学仿真软件ADAMS和有限元分析软件ANSYS进行了静动态特性分析；在考虑重力和切削力作用下，由ADAMS计算出导轨与滑块间的作用力，从而计算出横梁部件的静态变形；通过动态测试和参数辨识方法获得导轨结合面特性参数并将其应用到横梁滑箱系统整体有限元模型中，经过模态分析得到系统固有频率和各阶振型图，并进一步分析了结合面参数变化对横梁滑箱系统整体动态特性的影响。

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。