zero friction 中文意思是什麼
zero friction
解釋
無摩擦-
When the width of the foundation is smaller, the friction force is firstly increased from zero at the central area of the foundation, then decreased to zero at the edges of the foundation, hence there is a peak ; when the width of the foundation and the thickness of the soft ground is larger, the frication force is almost zero from the central area of the foundation to a certain distance, then increased, at last decreased to zero at the edges of the foundation, therefore there is a peak ; and when the width of the foundation is larger and the thickness of the soft ground is smaller, the friction force is firstly increased from zero at the central area of the foundation in the negative direction, then decreased to zero, so there is a negative peak, then increases in the positive direction, eventually decreased to zero at the edges of the foundation, hence there is a positive peak
當基礎寬度較小時，從中心線為零處開始增加，達到峰值后，開始減小，直至基底邊緣處為零；當基礎寬度和軟土地基厚度較大時，從中心線處開始，向外側延伸一定距離，幾乎為零，然後開始增加，達到峰值后，開始減小，直至基底邊緣處為零；當基礎寬度較大，並且軟土地基厚度較小時，從中心線為零處開始反向增加，達到反向峰值后，然後反向減小，減小到零后，逐漸正向增加，達到峰值后，再逐漸減小，直至基底邊緣處為零。 -
Against two kinds of nonlinear friction observers, the analytic expression of zero ve - locity interval t based on the nonlinear model of brushless dc motor system is deduced in this paper. simulation results indicate that the system performance at low velocity can be im - proved effectively using the friction observer based on coulomb friction model
針對兩種不同的非線性摩擦觀測器，推導了基於無刷直流電動機非線性模型的零速度時間間隔腡解析表達式，通過模擬證實，利用基於庫侖摩擦模型的摩擦觀測器可以有效地改善系統的低速控制性能。 -
One of the important step of decreasing abrasion is lubracation, and the old lubrication oils only decrease the abrasion of the relative movement surface following with extending its " using life. it does n ' t produce self - compensation film on the friction surface and does n ' t produce zero abrasion and self - compensation repairing effects
減少磨損的重要措施之一是潤滑，然而傳統潤滑油只能起減少相對運動表面的磨損、延長其使用壽命的目的，而無在摩擦過程中產生自補償被磨損表面的能力，因此也就不可能產生零磨損效應和自修復效應。 -
Based on the assumed vertical displacement of the unit cell and the assumed distribution on the pile - soil interface of the pure friction pile, and using the boundary conditions that there was no relative slipping between pile and soil, the pile decrement was equal to that of soil on the pile - soil interface and that the vertical sheer stress of the unit cell ' s outer edge was equal to zero, the formula for the frictional distribution of the pure friction pile and the formulas for the displacement of pile and soil in the treated area were deduced
通過假定的單元體豎向位移模式和純摩擦樁樁側摩阻力分佈模式，利用樁土間無相對滑移、樁土界面處樁土壓縮量相等和單元體邊界處豎向切應力為零等邊界條件，推導出復合地基純摩擦樁樁側摩阻力分佈的具體表達式，以及加固區樁土壓縮量的計算公式。 -
This thesis put forward a systemic method to settle the negative friction in project design. it includes when the negative friction must be consider, the zero position decided, count the down load, the negative friction group pile, the infection on end - bearing and sedimentation and stability, how to deal with in design to avoid the negative friction and how to solve when the negative friction produced
本文提出了在工程設計中如何處理樁基負摩擦力的方法，包括什麼情況下考慮負摩擦力、負摩擦力中性點位置的確定、樁基下拉荷載的計算、負摩擦力的群樁效應、負摩擦力對樁基豎向承載力和沉降的影響、設計施工中如何避免出現負摩擦力以及對已經出現的負摩擦力如何根治。 -
（ because the piece of plastic is smooth, players can slide along the touch screen with zero friction and leave virtually no marks
小塑料塊很光滑，所以用它在觸摸屏上滑動沒有摩擦，不會留下任何痕跡。
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