If you put something that floats, for example, in your fluid, something very light then it is going to start spinning.

如果你流体中放些漂浮物，很轻的东西，然后开始旋转。

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The main parameters of viscosity, spinning temperature, pressure and winding velocity for coal tar pitch fluid should be rigidly controlled during spinning.

在纺丝过程中，要严格控制煤沥青熔体的粘度、纺丝温度、压力、卷绕速度等主要参数。

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The paper deduced the Fluid dynamics model of Spinning solid propellant rockets, and validated the Fluid dynamics model by analyzing the examples, the result accord with the actual status.

推导了一种自旋固体火箭的流体动力学模型，并通过实例对模型进行了验证计算，计算结果与实际情况基本吻合。

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Inside the riser pipe is a space about half a meter in diameter, large enough to hold the spinning drill pipe and bit and to allow the return flow of drilling fluid.

FORBES: The delicate art of sucking up