obdurate
发表于 2025-3-21 18:48:23
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赦免
发表于 2025-3-21 20:21:42
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北京人起源
发表于 2025-3-22 03:55:00
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委派
发表于 2025-3-22 07:09:24
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健谈的人
发表于 2025-3-22 09:14:06
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FILTH
发表于 2025-3-22 15:30:15
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节约
发表于 2025-3-22 18:22:41
Marie-Pierre Reyeration is obtained if the gain in the resonator compensates for the overall losses, i.e., the propagation losses and the apparent losses due to the extraction of light [.]. Both common laser conditions are satisfied in diode lasers in another way than in typical gas or solid-state lasers. The reson
bile648
发表于 2025-3-23 01:14:22
Aleksandr A. Orlovbeginning of the twenty-first century, and it concerns those laser technologies which are directed to practical applications of laser propulsion. Typical examples of these applications are efficient laser-propulsion engines and high-power laser-propulsion (HPLP) systems..Advanced propulsion research
EXUDE
发表于 2025-3-23 04:26:22
David Schimmelpenninck van der Oyetion engines operating in both the continuous and pulse modeThis book gives an in-depth analysis of the physical phenomena of thrust production by laser radiation, as well as laser propulsion engines, and laser-propelled vehicles. It brings together into a unified context accumulated up-to-date info
大火
发表于 2025-3-23 07:30:37
Viktor M. Bezotosnyihoton processes. When a sufficient number of free electrons is created the formation of a dense, highly ionized plasma is more efficiently continued by electron–neutrals and electron–ion impact ionization. In view of many important applications the generation of a homogeneous high density and, at th