游艇专业英语词汇
使用性能试验 usability test美国标准学会 USASI (or ASA, or ANSU) (= United States of America Standards
Institute, U.S.A.)美国海岸防卫队 USCG (= U.S. Coast Guards, U.S.A.)超浅吃水船 USDV (= ultra shallow draught vessel)载货吨 useful (or cargo) dead weight有效寿命 useful life超音波试验 UT (= ultrasonic testing)器具 utensil使用试验 utility test双 U形槽 double-U groove 
