内: inner; inside; within裙: skirt内群亲近率: ratio of interest for home group; ration of interest for home group内全反射: inner total reflection内群体: in group; ingroupp内醛: propionaldehydre内群体偏见: ingroubias内圈轴心线: inner ring axis内燃: internal combustion (ic); internal fire内圈跑道, 有利地位: inside track内燃泵: internal combustion pump内圈跑道: inner track