pulmonary
发表于 2025-3-25 06:42:56
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领巾
发表于 2025-3-25 07:34:32
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initiate
发表于 2025-3-25 14:30:36
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表主动
发表于 2025-3-25 16:48:59
Compressor Lubrication,re extensively than any other. Most of this discussion will therefore deal with the compression of air, though many of the principles involved apply also to the compression of other gases. Separate sections will consider the lubrication of compressors used with other gases including refrigerants.
Abduct
发表于 2025-3-25 22:00:46
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fibula
发表于 2025-3-26 02:53:06
Cutting Oils,tal is compressed until it deforms plastically, . begins to flow and form the chip which slides along the rake face, curls away and eventually breaks off (Fig. 1). A lot of heat is generated—60% in forming the chip, the remainder resulting from friction between tool, chip and workpiece (Fig. 2). Sin
Musculoskeletal
发表于 2025-3-26 04:25:56
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LINE
发表于 2025-3-26 09:51:24
Initial Start Procedures,ation present, or it may gather contamination on site before being put into use. This contamination can come from a wide range of materials, including rust, scale, swarf, water, rust preventives and miscellaneous chemicals.
横截,横断
发表于 2025-3-26 13:40:50
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Acetaminophen
发表于 2025-3-26 20:22:21
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