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粉末冶金机械零件
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粉末冶金机械零件
Encyclopedia
工学
粉末冶金材料
释
powder metallurgy mechanical parts
粉末冶金机械零件
采用粉末冶金技术制造的机械零件。又称烧结机械零件。通常包括机械结构零件、含油轴承和摩擦零件等。
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wild carrot fruit
wild chrysanthemum flower
wild crucifer aphid
Wild Duck by a Brook
Wild Duck cluster
Wild-Duck Islet
Wild Duck Nebula
Wild Duck Playing by the Stream at Cliff with Plum Blossoms
wild embedding
wild embedding of a manifold
wild embedding of a polyhedron
Wilder
Wilderness and Man
Wilderness Area
wilderness area
wilderness rescue
wilderness survival
Wild evaporimeter
Wild Flowers by the Road
Wild Flowers of China
wild fruit tree
Wild Geese and Reeds
Wild Geese Descending on the Sandbank
wild ginseng
wild goose
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