internal gas体内废气internaladj.国内的；内部的；身内的internal airlift loop reactor内循环反应器internal radiation protection内照射防护internal energy per unit mass单位质量内能internal ballistics attribute内弹道性能internal supracondyloid bursa内髁上囊, 腓肠肌内侧头腱下囊internal transmission channel内部传播渠道internal definition principle内定义原理internal measuring micrometer内测千分尺internal physical cultivation内在体力的培养internal perfecting principle内在完善原理