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mechanical noise
释义
mechanical noise
Encyclopedia
工学
机械噪声
释
mechanical noise
机械噪声
内燃机运转时,由于部件间的摩擦力、撞击力或非平衡力使机械部件和壳体产生的振动辐射噪声。
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presenteeism
pre-sentence inspection
present-focus
presentive
Presentness
present value
present value of bond
present weather measurement instrument
preservation
preservation and conservationProject for China’s ancient books
Preservation and Conservation Project of Materials in Minguo Period (1911~1949)
preservation and conservation standards
preservation and long-term access through networked services
Preservation and Restoration of ancient wooden and bamboo Lacquer crafts
preservation and restoration of collection stone cultural relics
Preservation and Restoration of Oil Paintings
preservation class
preservation disaster plan
Preservation Handbook for Cultural Relics
preservation librarian
preservation of agricultural products
preservation of angles
preservation of aquatic products
preservation of area
preservation of cadaver
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