物种起源
发表于 2025-3-23 11:45:17
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印第安人
发表于 2025-3-23 17:18:48
Peter Balzer,Stefan Kröll,Bernd SchollAn important class of ceramic composites are materials in which voids (pores) of various shapes and volumes are created in a controlled manner. In these materials, the properties of these empty spaces are combined with those of the ceramic solid phase.
做作
发表于 2025-3-23 19:35:18
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不吉祥的女人
发表于 2025-3-23 22:48:53
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Leaven
发表于 2025-3-24 04:14:21
Peter Balzer,Stefan Kröll,Bernd SchollUntil recently, the development of materials was based on mechanics which, as an accurate and effective field of science and technology, was the discipline of choice throughout the Industrial Revolution.
钝剑
发表于 2025-3-24 09:02:43
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爱了吗
发表于 2025-3-24 10:47:38
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glowing
发表于 2025-3-24 16:10:00
Unusual Ceramic Dielectrics and Conductors,From the point of view of interaction with external electromagnetic (EM) fields, ceramic materials are either semiconductors, the valence electrons of which interact with near and remote EM fields (→6. Materials vs. light), and dielectrics where the interaction is restricted to near external EM fields.
无价值
发表于 2025-3-24 21:21:46
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Volatile-Oils
发表于 2025-3-25 02:07:01
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