查询词典 rolling friction

However, it was training for some long-standing friction between the person investigation, could not help but be taken aback: The surveyed 200 elderly people insist on friction, almost everybody Hefatongyan, energetic.

然而，有人对一些长期坚持磨擦锻炼的人进行调查之后，不禁吃了一惊：被调查的200位坚持磨擦的老人，几乎个个鹤发童颜，精力充沛。

The 3D-model of the brake band, countersunk head bolt and Friction Flake is established, and the frictional contact problem of brake band and friction flake was analyzed with the large-scale nonlinear finite element analysis software MSC.

以某超级油轮的锚机带式制动器为研究对象，建立了制动带、沉头螺钉和摩擦片的三维实体模型，并应用大型非线性有限元分析软件MSC。

Taking the optimization design and construction about friction pile s breast wall of Zhaitou II bridge in the highway from Sanhui to Kaili in Guizhou province as the example,this paper expatiates the optimization method about manual well concrete piles breast wall of friction pile when the bridge pile foundation drills through bad geology,so as to be references for similar projects.

文章以贵州境内三穗至凯里高速公路寨头II号大桥摩擦桩护壁优化设计与施工为例，阐述了桥梁桩基穿越不良地质地段时摩擦桩人工挖孔护壁的优化方法，以供同类工程参考。

By using static gap element theory, calculating the drill string friction through nonlinear mechanics iterative, the size and distribution rule of friction are found .

本文利用静力间隙元理论方法，对钻柱摩阻力进行非线性力学迭代计算，得出摩擦阻力的大小及其分布规律。

After the analyses of the force about different shape of caterpillar thorn, it was considered that the drive force of caterpillar tractor consisted of friction force, extruding and cutting force, edge cutting force and thorn friction force.

一般认为，拖拉机在田间行驶时，切线牵弓l力是由土壤抗剪力产生的，其计算公式通过土壤剪切力导出11·2}。这一观点忽略了其它一些因素的影响，并且只适用于直板式履刺。

Scene data indicate that in the process of actual making the casing into the Horizontal Well ,people used to reduce friction coefficient between the stratum and the Casing, Change the friction type between the casing and the wall,use special casing and centralizer with oriented ring, even join the slurry in the internal casing in order to increase self-casing, etc.

现场资料表明，在实际套管下入过程中，人们往往采用的是减小套管与井壁之间的摩擦系数、改变套管与井壁间的摩擦类型，使用带有导向环的套管和扶正器，甚至在套管内部加入泥浆，以增加套管自重等方法，但这些方法并没有改变套管下入驱动力减少的现实，不能从根本上解决套管下入困难的问题。

Since the force of friction and the velocity of a particle are directed oppositely, then the work of the force of friction on each part of the path is negative:Therefore, the work along any closed path will also be negative.

因为摩擦力量和微粒的速度直接反对，然后摩擦力量的工作在道路的每个零件的是消极的：所以，沿所有闭合的道路的工作也将是消极的。

Typically service brakes are concerned with dynamic coefficient of friction, or the coefficient of friction measured while the vehicle is moving.

典型工作条件下的刹车与动摩擦因数，即当车辆行驶时测出的摩擦因数有关。

Because of the small difference between the static friction coefficient and the dynamic friction coefficient of DF-5S slide, it avoids the squirming phenomenon in the restarting-up process efficiently and lowers the severe wear in the restarting-up process.

由于DF-5S铜基镶嵌滑块的动静摩擦系数的差值小，有效地避免了启动过程中的蠕动爬行现象的发生，降低了启动过程中的剧烈磨损。

My main production TSF Academy Soft Machine Tool belt and matching adhesive used primarily for machine tool guideways, abrasion resistance, static and dynamic friction coefficient of the difference small, not crawling, positioning accuracy, and has enough anti-aging and physical properties of mechanical is to improve the machining precision, extended service life Guide the best choice, the products applicable to all types of machinery and equipment manufacturing friction vice and maintenance.

我院主要生产TSF机床导轨软带与配套使用的胶粘剂，主要用于机床导轨，抗磨损，静动磨擦系数差值小，不爬行，定位准确，并具有耐老化和足够的机械物理性能，是提高机床加工精度，，延长导轨副使用寿命的最好选择，本产品适用于各类机械设备磨擦副的制造与维修。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48