resistant
发表于 2025-3-25 04:25:55
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推测
发表于 2025-3-25 07:31:16
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Fibrinogen
发表于 2025-3-25 14:08:31
,Die Sternenökosphären im Radius von 17 Lichtjahren um die Sonne,nur 16 sonnenähnliche Sterne breite (etwa 200 × 10. km) ýkosphären besitzen, während die Ökosphären um die übrigen 43 Unterzwerge sehr schmal (etwa 10 × 10. km) sind und nur Planeten mit „gehemmter“ Rotationsdauer, also mit sehr begrenzten ökologischen Möglichkeiten, haben können.
Lacunar-Stroke
发表于 2025-3-25 17:58:04
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enflame
发表于 2025-3-25 19:58:31
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Pert敏捷
发表于 2025-3-26 02:18:52
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PUT
发表于 2025-3-26 07:39:20
Recovery of a Circum-Lunar Instrument Carrier,on of the earth’s atmosphere involves more severe decelerations and heating than in the case of the recovery of a scientific satellite, the magnitude of the deceleration poses few structural difficulties and the use of a vaporizing surface for heat absorption does not require an excessive weight penalty.
纪念
发表于 2025-3-26 10:44:24
Optimization Considerations for Orbital Payload Capabilities,ly concluded that the Vanguard can be considered as a starting point only and that at least two decades will pass by until we can claim that orbital techniques are well under control, reliable, economically reasonable and approaching a certain perfection which is desirable and necessary for a large scale space flight development.
愤怒事实
发表于 2025-3-26 15:54:03
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nocturia
发表于 2025-3-26 18:16:25
Harald J. von Beckhthe concept ofnational innovation systems. The aim of this bookis to takeFinland as an example illustrating the challenges facedbysmall countries. The characteristics and performance of theFinnishnational innovation system of the last couple ofdecades are analyzed. TheFinnish experience is put in ab