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The correct answer is when covered by a film of liquid sufficient to reduce the coefficient of static friction between the tire and the road to essentially zero, but not so deep as to introduce a new source of friction.
正确的答案是"当[路面]被覆盖上一层液体足以把轮胎和道路之间的静态摩擦系数减少到理论上的零值又不产生新的摩擦源"。
《The Big Bang Theory Season 2》《生活大爆炸 第二季》
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The coefficient of friction for that same tire in mud would be almost zero.
同样的轮胎在泥泞的地面上,其摩擦系数可能几乎为零。
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As polymers have a low coefficient of friction, the bearings do not need lubrication.
由于聚合物具有较低的摩擦系数,轴承并不需要润滑。
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Smooth, cable fiber optic cable installation process can be very small coefficient of friction.
光滑的外护套使光缆在安装过程中可以有很小的摩擦系数。
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Polyurethane polymer containing no additives has a high coefficient of friction.
不含添加剂的聚氨酯聚合物有极高的摩擦系数。
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This surface has extreme hardness (60 RC. ), excellent wear and corrosion resistance, and low coefficient of friction.
这表面有极高的硬度(60局。),耐磨性和耐腐蚀性,低摩擦系数。
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ZA27 alloy shows good mechanical properties and working properties. Small coefficient of friction and large sticking force to oil can substitute ZA27 alloy for Bronze alloy.
ZA27合金具有良好的力学性能和加工性能,它的摩擦系数小,对油的亲和力大,而且ZA27合金的综合性能突出。
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Low friction—The coefficient of friction between the chip and tool should be low. This would allow for lower wear rates and better chip flow.
低摩擦系数—切屑与刀具间的摩擦系数应当较低。这会使磨损率较小及切屑流动更好。
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It shows that the coefficient of friction and wear volume are greatly influenced by brake speed.
结果表明:该材料的摩擦系数及磨损量受制动速度影响较大。
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Diamond bearing with the air, oil and water, low coefficient of friction and high load rate characteristics, compared with some of the technical aspects of stainless steel bearings to be improved.
金刚石轴承具有在空气、油和水中摩擦系数低以及高负载率的特点,与不锈钢轴承相比一些技术方面有待提高。
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Brake effect of Train brake friction material is not decided by the coefficient of friction completely, the ultimate performance of braking effect is the length of braking distance.
列车制动摩擦材料的制动效果不能光看摩擦系数的大小,制动效果的最终表现是制动距离的长短。
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The American Petroleum Institute (API) specifies properties of pipe dope, including its coefficient of friction.
美国石油学会指定的管子涂料性能包括了摩擦系数的大小。
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The tube surface has extreme hardness (60 RC. ), excellent wear and corrosion resistance, and low coefficient of friction.
管表面有极大的硬度(60钢筋混凝土。),良好的耐磨性和耐腐蚀性,低摩擦系数。
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On this account, the classical Euler's formula based on constant coefficient of friction is thus revised.
考虑到这个因素,对按照摩擦系数为常数而推导出来的欧拉公式进行了修正。
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SBC linear guides have low coefficient of friction and excellent repeatability.
SBC直线导轨的摩擦系数小,具备良好的重复性。
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Coefficient of friction is higher.
能够提供较高的摩擦系数。
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The influence of lubricant properties on coefficient of friction (COF) of coated paper was studied in this paper.
探讨了涂料中润滑剂的添加对涂布纸表面摩擦系数的影响。
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The coefficient of friction for static contact is higher than for dynamic contact, so static contact provides better traction.
此时因为静摩擦系数比动摩擦系数高,所以静摩擦的附着力较大。
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Self-lubricating rod bushing with a low coefficient of friction for smooth actuation.
自润滑连杆衬套的低摩擦系数平稳驱动。
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Revolving join is made of plastic of nanometer technique coat to reduce the coefficient of friction and increase efficiency.
脚蹬的转动副采用纳米塑料薄层,减小了摩擦系数,提高了效率。
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The coefficient of friction-----This factor relates the amount of friction force between two surfaces to the force holding the two surfaces together.
摩擦系数----这个系数是与相对摩擦的两个表面摩擦力有关的一个系数。
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Chuan power of small, low coefficient of friction will help to protect the electrical background.
传动力小,摩擦系数低,有利于保护后台电机.。
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The results show that friction material reinforced by pure copper fiber shows more stable coefficient of friction and lower wear rate.
研究结果表明:紫铜纤维增强的摩擦材料与灰铸铁间的摩擦因数最稳定,磨损率最低;
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The coefficient of friction is directly related to human's safety.
步进摩擦系数的大小直接关系到人体在行走过程中的安全性。
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By means of the revised Euler's formula, a more feasible and reliable method for the determination of coefficient of friction in friction winders is presented.
利用欧拉公式修正式,本文对用于矿井摩擦提升机的摩擦系数提供了一种快速、经济而又可靠的测定法。
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According to modern friction theory, the coefficient of friction may vary with the unit pressure between the contact surface of a friction pair.
按照近代摩擦理论,摩擦系数可随摩擦副中的比压变化而改变。
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For instance, a NASCAR tire has a very high coefficient of friction when it is driving on a dry, concrete track.
NASCAR轮胎在干燥的混凝土公路上有很高的摩擦系数。
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Dynamic Contact-----The tire is slipping relative to the road. The coefficient of friction for dynamic contact is lower, so you have less traction.
动摩擦----轮胎在路面上打滑。因为动摩擦系数较低,所以附着力较小。
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Revolving join is maddening that plastic of nanometer technique coat, in order to reduce the coefficient of friction for increased efficiency.
转动副采用纳米塑料薄层,减小摩擦系数,提高效率。
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Winter, tire easily aging, lower coefficient of friction with the road surface, the situation appears unstable grip.
冬季来临,轮胎容易老化,与路面的摩擦系数降低,出现抓地不稳的状况。
摩擦系数(coefficent(s) of friction)是表面之间的摩擦力和作用在其一表面上的垂直力之比值。 摩擦系数由滑动面的性质、粗糙度和(可能存在的)润滑剂所决定。滑动面越粗糙,摩擦系数越大。物体间的摩擦系数分为两种,一种是滑动摩擦系数,另一种为最大静摩擦力系数,在数值上,后者略大于前者。如果两物体间的相对速度较大,那么滑动摩擦系数还和相对速度大小有关。摩擦系数通常用摩擦角法测定。