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precision planter
精密播种机
农机
precision planter
precision plotter
precision positioning
precision poteintiometer
precision potentiometer
precision prescribed
precision presetting ...
precision radar
precision ratio
precision RBaumur the...
precision reached
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precision refractometer
precision regulator
precision research au...
precision resistance
precision resistor
precision rest
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precision rule
precision saw
precision sawing machine
precision scale
precision scanning
precision seamless st...
precision seeder
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precision small coaxa...
precision snap-action...
precision spectrograph
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precision standard
precision static toro...
precision stereoplotter
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precision theodolite
precision timing circuit
precision tolerance
precision tool
precision tools
precision torsion bal...
precision tracking
precision traverse se...
precision tube
precision watch
precision wattmeter
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