新字
发表于 2025-3-25 05:35:21
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anticipate
发表于 2025-3-25 08:42:22
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纯朴
发表于 2025-3-25 14:06:45
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马赛克
发表于 2025-3-25 18:30:10
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mercenary
发表于 2025-3-25 23:24:35
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心胸狭窄
发表于 2025-3-26 03:21:08
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ACTIN
发表于 2025-3-26 07:57:47
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斜坡
发表于 2025-3-26 10:27:35
problem of the center of oscillation for a two-mass-pendulum Jacob Ber noulli spoke about balancing the profit-and-Ioss account with respect to the motion of the two masses. Daniel Bernoulli extended these ideas to a chain pendulum and called forces not contributing to the motion "lost forces", th
inquisitive
发表于 2025-3-26 13:40:33
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指耕作
发表于 2025-3-26 19:00:11
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