noun🔗Share炮耳, 枢轴. 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. "模型炮之所以能平稳转动，是因为它被牢固地安装在炮耳上。technicalnauticalmilitarymachinepartChat with AIVocabulary GamePractice Reading
noun🔗Share耳轴, 枢轴 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. "那个沉重的金属模具由坚固的耳轴支撑，平稳地倾斜，以便工人可以轻松地倒入熔融塑料。technicalmachineparttechnologyChat with AIVocabulary GamePractice Reading
noun🔗Share耳轴，枢轴。 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. "修理工检查了汽车的前悬挂系统，特别注意那些能够让车轮平稳转动的耳轴枢纽。vehicletechnicalmachinepartChat with AIVocabulary GamePractice Reading
