BID
发表于 2025-3-21 16:57:08
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Bernstein-test
发表于 2025-3-21 22:14:02
,From the Pascaline to a 5-Digits Metallic and Planar Miniature Mechanical Calculator 1 cm in Laterawas transformed and the mechanical parts of this new design were 3D printed reducing 1:5 the active surface occupied by the 1790 original. To avoid back-carry propagations, the ratchet springs are still metallic. In a next miniaturization step, modern metal machining techniques were used to reach a
使习惯于
发表于 2025-3-22 04:03:18
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蕨类
发表于 2025-3-22 06:31:55
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Conflict
发表于 2025-3-22 09:22:45
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仇恨
发表于 2025-3-22 16:07:49
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闪光东本
发表于 2025-3-22 18:12:37
Chemical Anchoring of Molecular Rotors, dependent on the used substrate, and the surface-molecule bond must be sufficiently strong to endure under electrical operation. Here, we give an overview of anchor groups suitable to immobilize molecules on gold and other coinage metals via chemisorption. Sulfur-, nitrogen- and oxygen-based anchor
instulate
发表于 2025-3-23 00:45:14
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Free-Radical
发表于 2025-3-23 01:28:44
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Progesterone
发表于 2025-3-23 06:06:45
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