Vital-Signs
发表于 2025-3-23 13:26:44
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prostatitis
发表于 2025-3-23 17:53:14
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Mets552
发表于 2025-3-23 21:28:57
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Nebulizer
发表于 2025-3-24 01:58:20
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无底
发表于 2025-3-24 05:09:39
Calendering and embossing, the Bendtsen and Sheffield instruments circular steel lands of narrow cross-section (0.15 and 0.38 mm respectively) are pressed onto the paper, which lies on a flat glass plate. An air pressure difference forces air between the paper and land surfaces giving a measure of roughness in millilitres per minute (Bendtsen) and Sheffield units.
Cabg318
发表于 2025-3-24 08:13:32
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小争吵
发表于 2025-3-24 12:28:15
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承认
发表于 2025-3-24 16:12:31
M. R. Chamberlain (Head of Technical Investigation
说明
发表于 2025-3-24 19:26:28
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缩减了
发表于 2025-3-25 02:15:18
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