As the rotor of rotation, the translation of the vortex each compression interior volume change constantly, realize the gas sucked and compression.
随着涡旋转子的平移转动，各压缩室内容积不断发生变化，实现对气体的吸人与压缩。
An approximate expression of the volume of body of rotation together with its error estimation is derived on the basis of theory of numbers.
本文用数论方法推导出一个计算旋转体体积的近似公式，并给出该近似公式的误差估计。
A rotor is displaceable within the chamber, rotation of the rotor being related to the volume of fluid passing through the chamber.
转子可在所述腔室内部移置，所述转子的旋转与通过所述腔室的流体的体积相关联。
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