问题描述：
英语翻译
下面是对一个函数里字母的解析
Where F-----Amplitude of the force applied at the machine
i----Sign of imaginary number
e-----Off-center distance of the exciting force from the machine center of gravity
l-----Off-center distance of machine from the foundation beam
m-----Mass of the machine
J-----Moment of inertia of the area about the axis through its center gravity
求翻译
下面是对一个函数里字母的解析
Where F-----Amplitude of the force applied at the machine
i----Sign of imaginary number
e-----Off-center distance of the exciting force from the machine center of gravity
l-----Off-center distance of machine from the foundation beam
m-----Mass of the machine
J-----Moment of inertia of the area about the axis through its center gravity
求翻译
问题解答：
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