SPURN
发表于 2025-3-23 11:19:39
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阶层
发表于 2025-3-23 14:38:55
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本能
发表于 2025-3-23 20:11:58
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Interstellar
发表于 2025-3-23 22:25:09
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Negotiate
发表于 2025-3-24 03:49:07
Olivier Bandt,Heinz Herrmann,Giuseppe Pariginant’ frequency away from that of a disturbance..As a musician, you would wish to shape the vibration to something that sounds pleasant!.So to deal with a vibrating system you should:.Now there are two ways to go about step 3. You can mess about with simultaneous equations and algebra, or you can us
mercenary
发表于 2025-3-24 09:23:36
Demographic Factors of Fertility Change,..An example of such a system is a simple pendulum, swinging from side to side. But that pendulum has another degree of freedom where it swings towards us or away, or any combination of the two, swinging diagonally or in circles or ellipses. It has two frequencies, although in this case they are the
腼腆
发表于 2025-3-24 14:45:22
The Findings: Dependent Variables, dynamics – and so many of them are wrong! When a ‘starfighter’ banks, it is shown zooming away in a curve. But Newton’s laws tell you that you have to fire a jet perpendicular to the path if you want to change its line. The star-ship ‘Enterprise’ is shown with the unfortunate property that if its e
OCTO
发表于 2025-3-24 18:22:04
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BOLUS
发表于 2025-3-24 19:38:44
Principle of Terahertz Free Electron LaserThis short chapter introduces you to some techniques and concepts that you might find useful. Rather than trying to solve for the axis angles in a single hit, we ‘creep up on them’ by asking whether a positive or a negative ‘twitch’ will get us closer to the target. The Jacobian gives a more formal way to express this.
ALE
发表于 2025-3-25 01:14:52
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