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Concrete is classified as high-strength concrete based on 28-day strength. Until the 1970s, concrete with a strength of more than 40Mpa was classified as high-strength concrete.…
Phosphide nanoribbons achieved the desired effect in the first demonstration about the market name introduction Researchers have incorporated phosphorene nanoribbons into new types of solar cells, greatly improving their efficiency. Phosphotene nanor…
Phosphide nanoribbons achieved the desired effect in the first demonstration about the market name introduction Researchers have incorporated phosphorene nanoribbons into new types of solar cells, greatly improving their efficiency. Phosphotene nanor…
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