Experiments are made on locomotion force, velocity, locomotion ability on surfaces with different friction coefficients, and pose of the head cabin.
对机器人的牵引力、运动速度、在不同摩擦系数介质表面上的运动能力、头舱姿态进行了试验。
First, it roughens the texture of the match head, helping to create friction wherever you strike it.
首先，它使火柴头的质感变得粗糙，有助于产生摩擦力，无论你在什么地方划火柴。
Advantages: good toughness, low friction coefficient of the ruby head, long life.
优点：有较好的韧性，宝石头部摩擦系数低，具有超长的使用寿命。
The built-in ball head allows you to adjust and set its friction so that it balances the weight of your camera without needing locking and unlocking between positions.
嵌入式球形云台可调节和设定阻尼，无需在不同位置间锁定和解锁，即可平衡相机重量。
Examined by practice, the method about the working condition parameter optimization for coal plough and the calculation about friction force on plow head are feasible.
经实践检验，本文的刨煤机工况参数优化方法和刨头摩擦力计算方法是切实可行的。
Influential factors of friction factor of head loss are analyzed by adopting artificial neural network (ANN).
采用神经网络(ANN)方法对沿程水头损失系数的影响因素进行了分析。
Calculation formula of velocity distribution, boundary layer thickness, friction force and loss of water head are given out, in accordance with the result from theory analysis of similitude solution.
对于速度边界层提出了相似性解的解析结果，给出了速度分布、边界层厚度、摩擦阻力和水头损失的解析计算表达式。
While flowing through a pipe, the fluid is subjected to the loss of head due to the friction of the inner surface of the pipe against it.
流体流经管道时，由于管道表面的摩擦力而产生力头损失。
However, For pipes with local resistance loss, the friction head loss caused by the viscosity of fluid does exist, which may lead to the calculation error.
但是在形成局部阻力损失的管段中，还会同时伴随产生由于液体的粘性力引起的漩程水头损失，这就造成了这项损失的计算误差。
The pressure head of the liquid will decrease due to the friction on the surface of pipes when it flows through the pipes.
流体流经管道时，由于管道表面的摩擦力而产生力头损失。
Then, the effect of pile head vertical load value on negative skin friction is analyzed.
对桩顶荷载大小的影响进行了研究。
Then, the effect of pile head vertical load value on negative skin friction is analyzed.
对桩顶荷载大小的影响进行了研究。
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