internal set内部集internaladj.国内的；内部的；身内的internal administration内政internal security force[法] 国家保安部队internal characteristic内特性曲线internal communications内部交流internal mammary artery乳房内动脉internal failsafe timer内保险计时器internal cavity TR tube内腔式开关管internal limit membrane内界膜internal stagnant water内滞水internal house property内部房产