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Sigma KEE - BallBearing
BallBearing

appearance as argument number 1
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(documentation BallBearing EnglishLanguage "A small Metal Sphere designed for use in applications where it is desirable to reduce friction between two parts.") Cars.kif 1406-1407
(subclass BallBearing Device) Cars.kif 1404-1404 子類 BallBearing and Device

appearance as argument number 2
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(termFormat EnglishLanguage BallBearing "ball bearing") Cars.kif 1405-1405

antecedent
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(=>
    (instance ?BB BallBearing)
    (attribute ?BB Sphere))
Cars.kif 1413-1415
(=>
    (instance ?BB BallBearing)
    (material Metal ?BB))
Cars.kif 1409-1411


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