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| 1. | reciprocal energy theorem |
| 能量互易定理 |
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| 2. | maxwell reciprocal theorem |
| 麦克斯韦倒易定理 |
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| 3. | maxwell's reciprocal theorem |
| 麦克斯韦尔互换定理 |
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| 4. | This section is devoted so the proof of a reciprocal theorem between a pair of elastodynamic states. |
| 这一节将专门来证明一对弹力动力学状态之间的倒易定理。 |
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| 5. | acoustical reciprocal theorem |
| 声学互易定理 |
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| 6. | reciprocal theorem of work |
| 功的互等定理 |
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| 7. | Betti reciprocal theorem |
| 贝蒂互易定理 |
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| 8. | This section is devoted to the proof of a reciprocal theorem between a pair of elastodynamic states. |
| 这一节将专门来证明一对弹力动力状态之间的倒易定理。 |
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| 9. | reciprocal theorem of displacement |
| 互等位移定理 |
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| 10. | shape to identify beam boundary conditions, this paper presents five formulas by using the modified theorem |
| 摘要基于修正的功的互等原理，利用杆件横向振动频率及主振型反算杆件边界条件推导出了5个计算公式，并进行了数值计算。 |
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