查询词典 rod breaker

Produces each kind of stone material and the system granulatedsubstance, the dressing Hubei type breaker, the counter-attack typebreaker, the hammer type breaker, the impact type breaker, the circle锥式 breaker, the duplicate suitable breaker, the ball mill, thevibration gives, sand washer, shaker, flotation machine mine equipmentand so on the material machine.

生产各种石料及制砂、选矿的鄂式破碎机、反击式破碎机、锤式破碎机、冲击式破碎机、圆锥式破碎机、复合式破碎机、球磨机、振动给料机、洗砂机、振动筛、浮选机等矿山设备。

See Air Circuit Breaker, Main Breaker, Molded Case Circuit Breaker and Power Circuit Breaker.

见空气线路断路器、主开关、塑壳线路断路器等）。

See Air Circuit Breaker Main Breaker Molded Case Circuit Breaker and Power Circuit Breaker.www.topenergy.org8'0P6ld }w

见空气线路断路器、主开关、塑壳线路断路器等）。

Especially for the research and development of these products such as: mini circuit breaker, moulded-case circuit breaker, leakage circuit breaker, air circuit breaker, surge protective device, isolating switch, double-power automatic transfer switch, motor soft starter, VVVF and distribution box, there is one obvious point for its relatively ahead and professional features.

尤其在小型断路器、塑壳断路器、漏电断路器、万能式断路器、电涌保护器、隔离开关、双电源自动转换开关、电机软起动器、变频调速器、配电箱等领域的研究和开发存在着相对明显的超前性和专业性。

Then the intellectual control technology of vacuum circuit breaker is discussed particularly. As a control object, the bi-stable permanent magnetic actuator is separated into basic principle so as to determine the nature of the whole. The direct-coupled models of magnetic fields for analysis and for calculation are presented. The static and dynamic characteristics of the models and dynamic behavior analysis and matching analysis for the vacuum circuit breaker with bi-stable permanent magnetic actuator are also discussed. For a further study, fuzzy neural network control technology based on synchronized-closing operation of vacuum circuit breaker is analyzed and the research conclusion is used for realizing the synchronized-closing of vacuum circuit breaker in the future.

论文首先分析了永磁机构的结构和工作原理；然后主要针对双稳态永磁机构真空断路器分析了在开断和关合过程中的静态磁场耦合模型、动态分析数学模型和真空断路器的动态特性，并就永磁机构和真空断路器的匹配进行了分析；最后分析了基于双稳态永磁机构真空断路器的同步操作问题，深入研究了同步操作的模糊控制原理和算法，研究结果为最终实现永磁机构真空断路器的同步操作奠定了基础。

The thesis mainly concerns the following aspects: the relay protection and its trip-close circuit of two circuits transmission-lines are stand alone. The device has the ability of phase-trip that is owns transmission line single phase , 2 or 3phases fault only fault phase tripped.so as to making the power system contact as close as possible. The function of reclosing distribute into relay protection of line and breaker, so it is easy to get no-serious fault information of line protection and realize self-adapted multi pole reclosing. The breaker reclosing depend on the state of owns breaker andthe adjacent breaker. The criterion of serious fault and the sequence reclosing is simple and useful.

本项目具有如下特点：两回线的保护装置及跳、合闸回路完全独立；装置具有分相跳闸功能，即本线单相、两相、三相故障时均只跳故障相，使得故障时系统联系尽可能紧密；重合闸功能合理分配在线路保护和断路器保护中，充分利用了线路保护的信息实现无严重故障判别和分相顺序重合策略的自适应重合功能，由断路器保护根据断路器本身的工作状态和相邻断路器的配合关系实现重合出口；判断严重故障的判据及分相顺序重合闸原理简单合理，具有实用意义，降低了重合于永久故障对系统的冲击。

According to the plane cross section assumption, configuration of a rod is expressed as a history of the cross section with arc coordinate. A special solution which stands for equilibrium in straight line state is obtained from differential equilibrium equation. Linear perturbation equation is derived and its general solution is obtained in which the integral constants are determined by constrained conditions at two ends of the rod. The condition of existence of non zero solution of the integral constants gives to the Greenhill formula of exact elastic rod model, which shows that the boundary of stable area is a closed curve and of symmetry, and inference of shearable and extensible to stability of the rod is depend on three factors: difference between flexibility of shear and extension of a section of the rod, bending stiffness and the length of the rod.

基于平面截面假定，弹性杆的位形表达为截面的弧坐标历程，根据平衡微分方程得到了两端受力螺旋作用时的直线平衡特解，导出了线性化扰动方程及其通解，积分常数根据两端铰支时的边界条件确定，并根据其存在非零解的条件得到弹性直杆精确模型的Greenhill公式，表明稳定域为一对称的封闭区域，拉/压和剪切对稳定性的影响取决于：拉/压柔度与剪切柔度之差，抗弯刚度和杆长这三个因素

Adopt at present most advanced large-scale SUPER SAP finite element structure analyse procedure to go on numerical value calculation for model of drilling rod, drilling rod whole stress simulation of state that receive show and reflect drilling rod various kinds of stresses under different working states distribute the characteristic clearly, make stress state of drilling rod reach visual, make people able to understand informations of drilling rod of stress status in depth too at the same time, so that the design of the improvement drilling rod constantly is in order to meet the demands of actual project.

采用当前最先进的大型SUPER SAP有限元结构分析程序对钻杆的模型进行了数值计算，得到的钻杆整体应力状态的模拟显示清楚地反映了钻杆在不同工作状态下的各种应力分布特征，同时也使钻杆的应力状态达到了可视化，使人们可以深入了解钻杆应力状态信息，以便不断的改进钻杆的设计以满足实际工程的需要。

At the same time, sales of wear resistant welding rod, cast iron welding rod, stainless steel welding rod, casting tungsten carbide welding rod, low carbon steel welding rod, factory products:úspecial wear-resistant electrode, Sham Tseng bit special wear-resistant electrode, with wear-resistant welding rod mill, cement brick special wear-resistant electrode, pears seeder cultivator blades and other special wear-resistant electrode, the above Domestic Product of several ministerial-level enterprise year-round use.

同时销售耐磨焊条、铸铁焊条、不锈钢焊条、铸造碳化钨焊条、低碳钢焊条，本厂拳头产品：木炭机专用耐磨焊条、深井钻头专用耐磨焊条、粉碎机用耐磨焊条、砖瓦厂水泥厂专用耐磨焊条、播种机旋耕梨刀片专用耐磨焊条等，以上产品数家国内厅部级企业常年使用。

Studied pumping well system in this article, the intermediate power transmission parts uesed flexible rod, the downhole assembled rod pump, the ground driving device would transform up and down reciprocating motion into rotating motion. With own mechanism rounded trip for the downhole flexible rod and pump. Wellhead polished rod changed common stell for flexible polished rod. It was a innovation in theory study and craftwork method. It was a remarkable feature in this article, because these innovations were not studied and attempted for prehuman.

本文所研究的抽油系统，中间动力传动部件采用柔性抽油杆，井下配套杆式抽油泵，其地面驱动装置将传统抽油机驴头的上下往复运动变为旋转运动，并且能够利用自身结构对井下柔性抽油杆及泵体实现起下作业，井口光杆也由普通钢质光杆变为柔性光杆，这是理论研究和工艺方法的创新，这些创新都是前人所没有研究和尝试的，是本文的一大显著特点。

I think people in this lifetime in a rebirth.

我觉得人在这一生里其实也在轮回。

He had to tie her hands together.

他不得不把她的双手绑在一起。