摩擦

As the results, both the friction and wear are much lower in n-monohydric alcohols than in water; in ethanol, the friction and wear increase rapidly when a small amount of water was blended into the lubricant; the friction and wear decrease slightly with increasing the chain length in n-alcohols; in polyhydric alcohols, the increase of the hydroxyl number greatly reduces the friction and wear.

研究结果表明，陶瓷在醇中的摩擦和磨损均比水中低；在乙醇中加入少量水可明显增大其摩擦和磨损；随着一元醇分子链长的增加，其摩擦磨损略有降低；多元醇中羟基数目越多，其摩擦磨损越低。

The Ti_3SiC_2-SiC multiphase ceramic were fabricated by in situ synthesis under hot isostatic pressing.The examinations indicate that,the dominant wear mechanisms change with load increasing under unlubricated conditions,it is main abrasive wear under low load,and it is main adhesion wear under high load.Lubricating oil improves the friction coefficient and wear rate of Ti_3Si...

结果表明：干摩擦条件下随载荷的变化，占主导地位的磨损机制将发生变化，在低载荷下以磨粒磨损为主，高载荷下以粘着磨损为主；同干摩擦相比，润滑油对摩擦副的摩擦磨损性能的改善均很显著；Ti3SiC2/SiC复相陶瓷的磨损主要由粘着和微断裂引起的。

The main differences among these three test methods were compared, and correlation of evaluation among them were also discussed. The test results showed that the difference of test results is between 0.5 and 1.0 grade, and AATCC test method for wet crocking test showed more color transfer than the other two test methods.

结果表明，对于纺织品耐摩擦色牢度，三种测试方法所测得的耐摩擦色牢度值之间存在着一定的差异，虽然只有0.5~1.0级之差，但对于耐摩擦色牢度是否合格是至关重要的，AATCC湿摩擦的测试结果比其他两种稍显严重。

And fill in 3 of the pump noise to rub pair in influencing the axial column of the Model 63CY14-1B: With mix oil friction , variable head and slippery friction , column of boots of record fill in with column friction to fill hole cylinder block.

而对于影响63CY14-1B型轴向柱塞泵噪音的3个摩擦副：缸体与配油盘的摩擦、变量头与滑靴的摩擦、柱塞与柱塞孔的摩擦。

Puts briefly, the braking system has the braking force through the friction filler block clamp revolving brake disc or the lining compaction revolving brake drum, during this process as a result of will rub produces the massive friction heats.

简单地说，制动系统是通过摩擦衬块夹紧旋转的制动盘或摩擦衬片压紧旋转的制动鼓来产生制动力的，在此过程中将由于摩擦而产生大量的摩擦热。

With the increase of temperature, the friction coefficient of the composition materials increased and the wear rate of the composition materials decreased.PPTA pulps in the friction materials overcome the shortcoming of asbestos that has high wear rate at high temperature.

结果表明，3种芳纶浆粕增强的摩擦材料都具有优良的摩擦磨损性能，特别是随着温度升高，摩擦系数有较大提高的同时，磨损率明显下降，克服了石棉增强的摩擦材料在较高温度下磨损率较大的缺点。

The invention provides a low-friction sliding mechanism, a low-friction agent composition, a friction reduction method, a manual transmission and a final reduction gear unit that can exert very excellent low friction characteristics to sliding surfaces present under various applications, and, in particular, that have more excellent low friction characteristics than that of a combination of an existing steel material and an organic Mo compound.

本发明提供低摩擦滑动机构、低摩擦剂组合物、减小摩擦的方法、手动变速器和最终传动减速器，其在不同应用下会对所存在的滑动表面表现出极其优良的低摩擦特性，并且，尤其是其比现有的钢材和有机Mo化合物的组合具有更优良的低摩擦特性。

Careful research on friction materials has been done around the word for many years and the present system include materials mainly consist of polymer matrix, powder metallurgy friction materials and C/C friction materials.

多年来，国内外对摩擦材料进行了广泛的研究，主要形成了有机合成摩擦材料、粉末冶金摩擦材料和碳/碳复合摩擦材料为主的体系。

All the actuators of the three-axis turntable are brushless torque motors, all the bearings are aerostatic air bearings, so the friction caused by these elements can be neglected. The main source of friction is the metal-to-metal friction on the slip rings. Hence the "Columb+Viscous+Static" friction model is used here for analysis.

由于三轴转台的驱动系统选用的是无刷电机，轴承则采用的是气浮轴承，轴系上的摩擦力已大大降低，三轴转台上的摩擦主要是滑环轴上金属对金属的摩擦，所以文中选用&库仑＋粘滞＋静摩擦&的摩擦模型来进行分析。

Friction stir welding is a new solid state welding technique under the actions of mechanical forces and frictional heat. FSW has many advantages on the aspects of mechanical properties and producing efficiency, such as high strength, low defect, no pollution, etc. FSW can be used to join the buttcover plate and lap jointed sheeting of many materials, such as aluminium alloy, magnesium alloy, copper alloy, etc.

搅拌摩擦焊接是一种在机械力和摩擦热作用下的新型固态焊接技术，在接头力学性能和生产效率上具有较高的优越性，具有低缺陷、高强度以及环保等特点，同时，搅拌摩擦焊接技术可以对包括铝合金、镁合金、铜合金等多种材料的板状构件实现对接或搭接，另外，搅拌摩擦焊接可以较容易实现异种材料的连接。

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。