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但是，旋转速度不变的情况下增加球速会降低升力系数。
However, increasing the velocity at a given spin reduced the lift coefficient.
当所有基础方程都能用一组定常参数值来描述，正如熟知的RLC电路的情况，就称该系统是稳态的，或时不变的，或常系数的。
When all elemental equations can be described by a set of constant parameter values, as in the familiar RLC circuit, the system is said to be stationary or time-invariant or constant coefficient.
在一定的转速范围内，气相流速不变时，吸收系数随转子转速的增加而增加。
At a constant gas flow rate, the overall volumetric mass transfer coefficients increase with the rotational speed.
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