查询词典 repulsion force

Therefore, the torque required to open the gate valve required torque than the closure of large, in addition, for a pair of contact between the sealing surface, the Non Rising Stem Resilient Seated Gate Valves coefficient of static friction between them than the dynamic friction coefficient, to make them from the static state generate the relative movement is required to exert greater force to overcome the static friction; due to temperature changes, so that the sealing surface pressure between the larger, need to overcome the static friction force also will be bigger, so that when you open the valve on the stem nut on the sometimes increase the torque exerted a lot.

所以，开启闸阀所需的力矩比关闭闸阀所需的力矩大，此外，对于一对互相接触的密封面来说，它们之间的静摩擦系数也比动摩擦系数大，要使它们从静止状态产生相对运动，需施加较大的力以克服静摩擦力；由于温度变化，使密封面间的压力变大，需要克服的静摩擦力也随之变大，从而使开启闸阀时，对阀杆螺母上施加的力矩有时会增大很多。" Moment analysis of valve operation "是由中国闸阀网提供的国际阀门新闻，译文仅供参考。另外，中国闸阀网还提供相关产品搜索：闸阀型号、闸阀价格、闸阀技术、闸阀新闻、闸阀生产商等。

With increasing confining pressures, the frictional force of fissures will exceed the cohesive force of rock material.

利用摩擦的概念可以理解不同岩石的变形、承载和破坏随围压变化的特征。

Close the valve, the need to open and close with the Coma Berenices two pieces of the sealing surface of the seal formed between certain specific pressure, while also overcoming the stem and the packing between the stem and the nut thread between the stem end bearing at and other friction parts of the friction, and therefore must apply the closing force and closing a certain moment, the valve in the open and close the process, the required hoisting hoisting force and moment of change, and its maximum is close to the final instant or open the initial transient.

关闭阀门时，需要使启闭件与发座两密封面间形成一定的密封比压，同时还要克服阀杆与填料之间、阀杆与螺母的螺纹之间、阀杆端部支承处及其他磨擦部位的摩擦力，因而必须施加一定的关闭力和关闭力矩，阀门在启闭过程中，所需要的启闭力和启闭力矩是变化的，其最大值是在关闭的最终瞬时或开启的最初瞬时。

Close the valve, the need to open and close with the Coma Berenices two pieces of the sealing surface of the seal formed between certain specific pressure, while also overcoming the stem and the packing between the stem and the nut thread Automatic Control Valves between the stem end bearing at and other friction parts of the friction, and therefore must apply the closing force and closing a certain moment, the valve in the open and close the process, the required hoisting hoisting force and moment of change, and its maximum is close to the final instant or open the initial transient.

关闭阀门时，需要使启闭件与发座两密封面间形成一定的密封比压，同时还要克服阀杆与填料之间、阀杆与螺母的螺纹之间、阀杆端部支承处及其他磨擦部位的摩擦力，因而必须施加一定的关闭力和关闭力矩，阀门在启闭过程中，所需要的启闭力和启闭力矩是变化的，其最大值是在关闭的最终瞬时或开启的最初瞬时。

Close discharge valve, the need to open and close with the Coma Berenices two pieces formed between the sealing suce sealing certain specific pressure, while also overcoming the stem and the packing between the stem and the nut thread between the stem end Department and other friction parts bearing friction, and must exert a certain degree of closing force and closing moments, PUMP CONTROL VALVE EN700X the valve in the open and close the process, the required hoisting hoisting force and torque is the change, Its maximum is in the closed or open end of the initial transient instantaneous.

关闭放料阀门时，需要使启闭件与发座两密封面间形成一定的密封比压，同时还要克服阀杆与填料之间、阀杆与螺母的螺纹之间、阀杆端部支承处及其他磨擦部位的摩擦力，因而必须施加一定的关闭力和关闭力矩，阀门在启闭过程中，所需要的启闭力和启闭力矩是变化的，其最大值是在关闭的最终瞬时或开启的最初瞬时。

Based on analysis of the force deployment , and the command level rdadons, the paper presents a bilevel programming battle model of tbe optimization problem of force deploirment, studies .

在对军事作战中兵力部署和指挥关系分析的基础上，提出了一种考虑两级指挥关系的兵力部署优化模型，即两层非线性整数规划模型。

Formwork is a kind of temporary structure of multilevel force transfer, the force transfer route is usually as follow: load→form→inner ridge→outer ridge→post, after fixing the material of formwork, there are manifold possible compages of formation of formworks.

模板是一种多级传力的临时结构，传力路线一般是：荷载→模板面板→内楞→外楞→立柱，当模板的用料确定后，模板的构造有多种可能的组合。

With the assumption of contact force distribution between beams composing a simply supported laminated beam,a contact force function is deduced by applying deformation compatibility condition,and its validity is discussed.

针对简支叠梁的受力特点，建立简支叠梁的简化分析模型，对简支叠梁之间的接触力分布提出假设，运用变形协调条件推导出接触力函数，并对接触力函数的有效性进行了讨论。

In this paper, the waved-edge force model is deduced on the basis of straight edge force model by use of the curve integral principle. This method is suited to the case for the complex 3-D grooves of random curve edge.

在直线刃铣刀片模型的基础上，利用曲线积分原理，建立了波形刃铣刀片铣削力数学模型，该方法可适用于任意曲线刃的三维复杂槽型的情况。

Because this extra force is nearly always there (it is a component of the gravitational force on us), we don't notice it.

因为这个额外的力几乎一直保持不变（它是我们所受重力的一个分量），所以我们感觉不到它的存在。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。