“
. I therefore assume that the course taken by any excitation under the control of the second system is bound to quite different mechanical conditions from those which obtain under the control of the first system. 去书内
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  • 李思美 李思美

    I therefore assume that the course taken by any excitation under the control of the second system is bound to quite different mechanical conditions from those which obtain under the control of the first system. Therefore, I assume that the path followed by any excitation under the control of the second system must be subject to quite different mechanical conditions from those that exist under the control of the first system.

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