The humidity could change in the room and that could change the friction coefficient.
室内的湿度会随时变化,这对摩擦系数影响很大。
The frictional force remains constant, dependent on the friction, the kinetic friction coefficient, is always the same...
摩擦力不守恒，它取决于摩擦力，动能摩擦系数，一直是相同的。
That should allow you to also calculate the friction coefficient.
你们同样可以，计算摩擦系数。
If indeed the friction coefficient is independent of surface area, then when I tilt them they should start to slide roughly at the same Angle.
若摩擦系数真的，与接触面积没有关系，那么两者下滑时的角度，应该基本相当。
That should allow you to calculate the static friction coefficient and you'll get a chance to do that in your third assignment.
这样一来，请计算静摩擦系数，它将作为你们第三次作业的，一部分。
This is a way that you can measure the static friction coefficient.
这是测量静摩擦，系数的一种方法。
It is fairly easy to measure a friction coefficient by putting an object on an incline and by changing the angle of the incline, increasing it This is the angle alpha.
测量摩擦系数有一种简单方法,把物体放置在斜面上,然后不断增加斜面的倾斜度,这是角α
I'll give you the Angle and I want you to calculate that friction coefficient.
我会读出角度，你们帮我计算摩擦系数。
I told you that the friction coefficient is independent of the mass of the object.
我讲过，摩擦系数，与物体质量无关。
With special raw material (raw rubber bearing) and small friction coefficient; electricity -saving.
含特殊原料原橡胶轴承，摩擦系数小，更省电。
We will do that later until it starts to slip and then at that critical angle that it starts to slip you have a value for mu of s for the static friction coefficient.
增加倾斜度直到物体开始下滑,然后记住开始下滑时的角度值,通过公式就能求出,静摩擦系数μ静。
With graphite particle content increasing from 5% to 20%, wear weight-loss and friction coefficient of the composites are obviously declined, greatly improving wear resistance of the composites.
随着石墨颗粒含量从5%增加到20%，镁合金基复合材料的耐磨性得到明显的改善，磨损质量损失与摩擦系数都降低到较低水平。
So you should be able to calculate what the friction coefficient is using the equation tangent alpha equals mu s.
你们则需要学会,计算摩擦系数,使用μ静=tanα这个公式。
In the default model the friction coefficient is defined as afunction of the equivalent slip rate and contact pressure.
在默认模型里，定义摩擦系数为等效滑移率和接触压力的函数。
However, in some application conditions, low hardness, big friction coefficient and poor wear resistance confine its extensive application in engineering.
然而，在某些应用条件下，钛合金的硬度低，摩擦系数大，耐磨性差。
And so that means that the frictional force is a maximum value possible, N which is the static friction coefficient times N, and therefore that is mu of s mgcos And when will that happen?
这意味着,摩擦力在最大值，静摩擦力因数乘以,等于mus乘以,θ，times，mg，times，the，cosine，of，theta。,什么时候会发生？
This brush holder of technology and structure has obsolete technology, lack of support structure is complex and the friction coefficient.
这种刷握的技术和结构己陈旧过时，技术中的不足是支架结构复杂摩擦系数大。
If the roll core is made of special materials, smaller friction coefficient of tile can be used.
客户的卷芯如果是特殊材料制造的，可采用摩擦系数较小的瓦片材料。
But from abroad in the use of the airport runway friction coefficient test purchase of vehicles demarcation device error is found, it is impossible to guarantee the next instrument.
但在使用从国外购买的机场跑道摩擦系数测试车过程中发现标定装置误差太大，根本无法保证接下来的测量。
In the traditional numerical simulation, the bottom friction coefficient has been treated as a constant or different constant in different region.
在传统的数值模拟工作中，底摩擦系数被当作一个常数或者在不同的海域取不同的常数。
Friction coefficient increased with abrasive size and concentration increased.
当磨料的添加量和粒度增加时摩擦系数增大。
Laser cladding on titanium alloys can improve the surface properties, obtain the coatings with high hardness, good wear resistance and low friction coefficient.
在钛合金表面进行激光熔覆，可提高钛合金的表面性能，获得高硬度、耐磨性能好、低摩擦系数的熔覆层。
In this article, relations among reverse tension, friction coefficient and quality of wire are discussed in theory and practice of cold drawing process in detail.
对拉丝工艺中的反张力与界面摩擦系数及产品性能间的关系作了理论和实践方面的详细论述。
The experimental results indicate that this material possess low friction coefficient and excellent antifriction property.
试验结果表明：此各材料具有较低的摩擦系数和良好的减摩耐磨性能；
However, the friction coefficient between Ni and APS increased with sliding velocity increasing and reduced with load increasing.
而镍与APS间的摩擦系数随滑动速度的增大而增大，随载荷的增大而减小。
The friction coefficient decreases with the increase of load.
随载荷的增大摩擦系数减小；
Typically, the staticfriction coefficient is higher than the kinetic friction coefficient.
静摩擦系数典型地高于动摩擦系数。
The result shows that load, seal gap and seal height have influence on the maximum stress while friction coefficient has little influence on it.
分析表明，载荷、密封间隙、橡胶密封筒高度对应力最大值有影响，而摩擦系数影响很小。
The result shows that load, seal gap and seal height have influence on the maximum stress while friction coefficient has little influence on it.
分析表明，载荷、密封间隙、橡胶密封筒高度对应力最大值有影响，而摩擦系数影响很小。
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