?最上层全通甲板 uppermost continuous deck
?立式钻床 upright drill (or drill press)
?直立钻床 upright drill (or drill press)
?正浮位置 upright position
?直立艏柱 upright stem
?倾覆 upset
?端压对头焊接 upset butt welding
?端压焊接,端压熔焊 upset welding
?倾覆角 upsetting angle
?倾覆力臂 upsetting arm (or lever)
?杆端锻粗机 upsetting machine
?倾覆力矩 upsetting moment
?立式钻床 upright drill (or drill press)
?直立钻床 upright drill (or drill press)
?正浮位置 upright position
?直立艏柱 upright stem
?倾覆 upset
?端压对头焊接 upset butt welding
?端压焊接,端压熔焊 upset welding
?倾覆角 upsetting angle
?倾覆力臂 upsetting arm (or lever)
?杆端锻粗机 upsetting machine
?倾覆力矩 upsetting moment
?倾覆点 upsetting point
?上游设计 upstream design
?烟道 uptake
?烟道通风筒 uptake ventilator
?向上通风 upward ventilation
?向上焊接 upward welding
?小便池 urinal
?咖啡壶 urn
?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
?MA U型螺叶断面 MAU type blade section
?单 U形[焊]槽 single-U groove
? U形夹 U-clamp
? U形弯管 U bend
?双 U形槽 double-U groove
? U形管 U-bend
? U形管 U-pipe
? U形管 U-tube
? U形管压力计 U-tube pressure gauge
? U形管式加热器 U-tube heater
? U形螺栓 U-bolt
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