Leaven
发表于 2025-3-30 09:40:02
Optical Frequency Oscillators: Lasers,rinciples are identical since they both deal with electromagnetic waves, the practical problems of creating the conditions to observe them are very different. In common usage the terms laser and maser are used to denote an oscillator rather than an amplifier. It is a remarkable fact that the realiza
savage
发表于 2025-3-30 13:45:28
The Mechanical Gyrocompass, a body spinning freely in space will continue doing so indefinitely about a fixed axis; indeed the absence of any obvious forces of interaction between the parts of such a body must have convinced the ancients that the circular motion is “natural” and involves no forces. In fact the dynamical behav
富足女人
发表于 2025-3-30 16:32:13
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厌食症
发表于 2025-3-30 21:13:07
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你正派
发表于 2025-3-31 02:08:14
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天空
发表于 2025-3-31 05:34:27
Satellite Navigation: The User Segment,with the result that it has become an indispensable appurtenance of modern life. In addition to its familiar use to navigate on the highway, it has impacted fields as diverse as navigation, by land, sea, and air, surveying and geodesy, and large-scale construction projects such as mines, bridges, an
悦耳
发表于 2025-3-31 13:10:45
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Galactogogue
发表于 2025-3-31 16:58:36
The Future of Navigation,tion entails: to reach a given destination, we clearly require a means of measuring distances and directions in space as well as a way to integrate the path and project the expected arrival at the destination. Distances are now defined in terms of the propagation time of light, that is, the velocity
连累
发表于 2025-3-31 19:42:05
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开始没有
发表于 2025-3-31 22:57:37
F. G. Majorilosophy and sociology. To many interpreters today, this peculiarity of critique appears out of fashion. Consequently, showing the urgent need for an interdisciplinary collaboration between philosophy and sociology for Critical Theory asks both for a consistent innovation of Critical Theory’s canon