noun🔗Share砲耳One of the short stubby bearings on either side of a cannon; a gudgeon."The model cannon pivoted smoothly because it was securely mounted on its trunnions. "模型の大砲は、砲耳にしっかりと取り付けられていたため、スムーズに旋回しました。technicalnauticalmilitarymachinepartChat with AIVocabulary GamePractice Reading
noun🔗Share旋回軸A similar rotational bearing comprising a rotating arc or ring sliding in the groove of a stationary arc, used in machinery to allow a workpiece to be moved relative to a fixed tool."The heavy metal mold, supported by sturdy trunnions, tilted smoothly so the worker could easily pour in the molten plastic. "頑丈な旋回軸で支えられた重い金属製の金型は、作業者が溶融したプラスチックを容易に注げるようにスムーズに傾きました。technicalmachineparttechnologyChat with AIVocabulary GamePractice Reading
noun🔗ShareキングピンA similar rotational bearing used in automotive suspensions."The mechanic inspected the car's front suspension, paying close attention to the trunnions that allowed the wheels to pivot smoothly. "整備士は車のフロントサスペンションを検査し、車輪がスムーズに回転できるようにするキングピンに細心の注意を払いました。vehicletechnicalmachinepartChat with AIVocabulary GamePractice Reading
