exophthalmos
发表于 2025-3-30 10:04:49
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少量
发表于 2025-3-30 16:23:12
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个人长篇演说
发表于 2025-3-30 16:31:46
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Connotation
发表于 2025-3-30 21:39:34
Breakdown Sealsh exceeded the capability of packed boxes. Their greatest use came with the advent of the high-speed boiler feed pump. At the time of this development, the early 1950s, mechanical seals were not able to demonstrate the dependability necessary for such a critical application. Today the circumstances
迫击炮
发表于 2025-3-31 01:50:56
Bearingsder the action of radial and axial forces. Their design, therefore, is as critical as any of the other major pump parts; a pump with unreliable bearings is a continual cause of unnecessary outages and maintenance expense.
CHOIR
发表于 2025-3-31 06:48:58
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烦忧
发表于 2025-3-31 12:46:00
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