通过数值计算，获得稳定平衡半径，以及它与驱动声压的相关性。
By numerical calculation, the steady ambient radius together with its dependency on the driving pressure is obtained.
当抽油机不平衡时，可以按文中的公式调整平衡块和曲柄平衡半径。
If the pumping unit is unbalanced, the counterweight and the crank balance arm can be adjusted according to the formulas presented in this article.
在环内中性等离子体情况下计算了传输过程中的两个重要参量——平衡半径和空间电荷力平衡半径，讨论了电子束的传输特点。
Two important parameters-balance radiuses and space charge force balance radius is calculated under neutral plasma case. The properties of electron beam transmission are discussed.
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