词汇	orientation perforation
释义	orientation perforation 定向射孔
随便看	lower 'tween deck lower tympanion low-erucic acid low erucic and glucosinolate content Lower Ugashik Lake lower upon lower/upper case lower/upper reaches of a river loweruppersemicontinuous lowerupper semicontinuous lower[upper]semicontinuous lower-upper solutions Lower ureteral lower ureteral calculi Lower-ureteral lesions Lower ureteral stones Lower Urho Formation lower urinary infection lower uri-nary system lower urinary tract lower urinary tract disease Lower urinary tract dysfunction lower urinary tract infection Lower urinary tract infectious disease Lower urinary tract obstructive syndrome