摩擦力

It demonstrates that the bond strength between the screw thread-like, sand-adhering surface and the FRP bars is still provided by the friction and mechanical joggling force.

研究结果表明，该螺纹状表面粘砂FRP筋粘结力仍然由摩擦力和机械咬合力提供，但相对而言，摩擦力起主要作用。

The numerical results indicate that there is no effect on friction force of a lower anchor; in addition, the friction force of an upper anchor increases as the vertical space of double anchors decreases.

研究亦发现，下方地锚之摩擦力并不太受垂直间距之影响，而上方地锚之摩擦力却有随垂直间距减少而增加之趋势。

Oil is a lubricant . It is used to reduce the friction between two surfaces. Think about the chain on your bicycle. If there were no oil on it, then the cog and the chain would be subject to much more friction. The bike would be very hard to pedal.

油是一种润滑剂，可以减少两物体表面的摩擦力；想想你脚踏车上的链条，如果上面没有润滑油，齿轮和链条间会产生很大的摩擦力，脚踏车就不好踩了。

According to the dynamics analysis of the cotton sliver coiling process,by considering the minimum friction of cotton sliver caused by screwy pipes as objective function the design of screwy pipes of can coiler is explained based on the theory of the variational direct-method.

对棉条圈条过程定量地进行了动力学分析，以棉条所受曲线斜管摩擦力最小为目标函数，基于变分问题直接法原理设计出圈条盘螺旋形曲线斜管。这种螺旋形曲线斜管充分利用圈条盘的转动对棉条产生的离心力甩摆作用，使棉条所受曲线斜管摩擦力较小，从而使出条更顺畅；在一定程度上降低了圈条盘螺旋形曲线斜管堵眼频率与条筒乱条几率，使其更适应现代并条机生产高速化的要求

Analyses the seal mechanism of sleeve expansion joint and the defect of the current calculation formula of the friction force,presents new formula and illustrates the influence factors of friction force.

分析了套筒补偿器密封机理及目前所用的摩擦力计算公式的缺陷，给出了新的计算公式，并对影响摩擦力的因素进行了说明。

The stretching influence on the near trusses should be considered when using the stretching-twice method, and the construction is hard to be controlled. The Harbin exhibition sports center with a 128m support span, attached to a deep design calculation of the super-large span prestress truss string structure, stretching once in tension bed method is brought forward for the bottom cable of the single truss string structure. From calculation research on the friction force between the tension bed and the truss string structure, the friction influence is considered for the displacement method of the middle of span, with the action of the fixed cable stress. This method, with vertical displacement of the middle of span as its main control target for prestress stretching, is successfully applied in the prestress stretching construction of the project.

二次张拉需考虑张拉对相邻桁架的影响，施工控制难度大，本文结合哈尔滨会展体育中心支座跨度128m的超大跨度预应力张弦桁架结构的深化设计计算，提出了单榀张弦桁架下弦拉索胎架一次张拉法施工方法，通过对张拉阶段胎架与张弦桁架间摩擦力的计算研究，定量索力下跨中位移法考虑摩擦力影响，以跨中竖向位移作为预应力张拉的主要控制指标，成功地完成了该工程预应力张拉施工。

"Friction",Friction causes a rolling ball to stop finally.

&，&摩擦力使得一只滚动的球最终停了下来&，，&Friction的中文意思为对流摩擦力加热辐射

An experiment is made on dynamic friction of HTSD linear roller guide, a comparison is made between the experimental result and the theoretical calculation and an analysis is made on possible causes that would result in fluctuation of friction of the guide.

文章对HTSD直线滚动导轨副的动态摩擦力波动进行了实验研究，并将实验结果与理论计算进行了比较，分析了引起导轨副摩擦力波动的可能原因。

Two pairs of chutes and holes on the cleaning base and the brushes form the double chute swing mechanisms by the connection of an axis and cause the brush to cling to the wall surface to clean by the friction feedback, thus achieving effective cleaning when walking error occurs and the pipe section changes, furthermore, the larger the friction on the wall surface is, the larger the forward pressure on the wall surface is, therefore, the dirtier the wall surface is, the higher the cleaning efficiency is.

清扫底座与刷子夹上的两对滑槽和孔通过轴的连接形成双滑槽摆动机构，并通过摩擦力反馈使得刷子能够紧贴壁面进行清洗，从而在出现行走误差和管道截面变化时都能够有效清洗，并且壁面摩擦力越大刷子作用在壁面上的正压力越大，因此壁面越脏时清扫效率越高。

When the car of system motive be stronger than the friction of the tire and will result in the tire lock die, once the occurrence tire lock die so tire and the friction of the ground from" quiet the friction"s become" to move the friction", not only the friction lowers significantly but even will lose to change direction to follow the vestige ability.

当剎车的制动力大过轮胎的摩擦力就会造成轮胎锁死，一旦发生轮胎锁死那么轮胎与地面间的摩擦就由『静摩擦』变成『动摩擦』，不但摩擦力大幅降低更会失去转向循迹能力。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。