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patent for invention
释义
patent for invention
发明专利权
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lead amalgam
lead and cadmium alloy
lead and lag (国际收支)
lead and leave edges
lead and taper gauge
lead angle
lead annealing
lead-antiknock additive
lead antimonate
lead-antimony alloy
lead-antimony-tin alloy
lead apron
lead aryl
lead arylide
lead ash
lead attachment
lead azide
lead back
lead-baffled collimator
lead ball
lead ballast
lead bank
lead bar
lead barium glass
lead-base alloy
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