Trog, TR, trabeculae of corpora cavernosa penis, trochoidal focusing mass spectrometer, tropospheric refraction of radio wave, trochanteric bursa of gluteus minimus, tranditional microscopic pap's smears, trachoma and inclusion conjunctivitis, truncus subclavius dexter/sinister, Trachelomonas lacustris var. ovalis, Trachelomonas intermedia var. minor, tropospheric scatter communica-tion 返回 tragus