| No TPTP formula. May not be expressible in strict first order. | Cars.kif 1376-1376 | MechanicalJoint 是 工程组件 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 1364-1364 | BallJoint 是 MechanicalJoint 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 1374-1374 | 合页 是 MechanicalJoint 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 1399-1399 | Bearing 是 MechanicalJoint 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 2107-2107 | CVJoint 是 MechanicalJoint 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4229-4229 | UniversalJoint 是 MechanicalJoint 的 subclass |
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