查询词典 rolling friction

The test results indicate that the Colburn factor and the friction factor increase with the decrease of space of fins.

结果表明，换热和摩擦因子都随着翅片间距的减小而增大。

When inlet relative humidity increases, the Colburn factor increases and the friction factor almost remains unchanged.

当入口相对湿度增大时，换热因子增大，而摩擦因子则几乎不变。

When inlet relative humidity increasesthe Colburn factor increases and the friction factor almost remains unchanged.

当入口相对湿度增大时，换热因子增大，而摩擦因子则几乎不变。

The comparison between Colburn factor and friction coefficient shows that Colburn analogy is not so much applicable to the drag-reducing fluid, especially for the low bulk flow Reynolds number conditions.

减阻流体柯尔本因子与摩擦系数的对比结果表明柯尔本比拟，特别是在较低流动雷诺数下有较大偏差。

The heat transfer coefficients and pressure drop data for different fin pitch F p and fin height F h were reported in terms of Colburn j -factor and Fanning friction factor f , as function of Re Lp .

在风洞试验台上对20种不同结构参数的扁管百叶窗翅片进行了传热和流动阻力性能试验，分析比较了翅片间距和翅片高度对其表面对流换热系数和空气阻力性能的影响。

Usually generator collector ring having fever is due to the destruction of the surface oxide film and mechanical friction. This paper analyzed the reasons for it and put forward the treatment method.

发电机集电环发热大多是由于表面氧化膜被破坏且无法重新建立，以及机械摩擦等原因造成的，本文对这些原因进行了分析，并对其处理方法进行了探讨。

Colza containing 5.0% MoS2 exhibited superior performance of friction reducing and anti-wear property because Mo52 adsorbed on rubbing surface.

这是因为MoS2主要以吸附形式存在于摩擦表面。

And friction is also what allows a skater to ever come to a stop.

也只有摩擦力的存在选手们才能停下来。

Were there no friction, a moving object would never come to a stop.

如果没有摩擦，运动的物体就永远不能停止。

Aimed at the common problems for the mechanical seal of large-scale desulphurization circulating pump during operation process,such as vibration,axial impact and dry friction and so on,a new mechanical seal with bumper and reduce expenditure ring was designed,which is suitable to working condition requirements and the characteristics of sealed cavity of large-scale desulphurization circulating pump.

针对大型脱硫循环泵工作过程中机械密封存在的易出现振动、轴向冲击和干烧等问题，通过设计缓冲垫和节流环等新型结构，研制出一种适合大型脱硫循环泵工况要求和密封腔体特点的新型机械密封装置，并介绍了该新型密封装置的结构设计和主要的技术特点。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？