U字彙

U bend
U boat
U bow
U-bend
U-boat
U-bolt
U-clamp
U-pipe
U-section
U-shaped section
U-tube
U-tube heater
U-tube pressure gauge
U-tube tank

U.S. gallon
UHF {ultra high frequency}
ultralumin
ultrared
ultrasonically-induced cavitation
ultrasonics
ultraviolet
umiak
una boat
unaffected zone
unbalance
unballast
unbroken bulkhead
unbuilding
unburden
unburied pipeline
uncertainty
uncontrolled superheat boiler
unctuosity
underbed
underbody
undercanvas
undercharging
undercoat
undercooling
undercure
undercurrent
undercut
undercutting
underdamped navigation mode
underdesign
underframe
undergauge
underground cavity
underhung balanced rudder
underkeel
underlay
underpressure
underquenching
underream
underreamer
underseal
underset
underside handholds
undersize
undersluice
understructure
undersuit
underswing
undertow
undock
undog
undulating current
undulation
undulator
unfairness
UNFCCC
uniflux condenser
uniformity
unislip propeller
unloader
unmodulated carrier
unpermeability
unpierced bulkhead
unprotected front bulkhead
unresisted rolling
unrighting analysis
unsaturated polyester resin
unseaworthiness
unsheathed deck
unshielded arc welding
unsinkability
unsolder
unsplit casing
unsprung mass
unstable equilibrium
unstepped planing boat
unstudded cable
unstuded short-link chain
untarred rope
upcast ventilator
upcrossing
upholstery
upkeep
uplift
uppermost continuous deck
uprise
upsetter
upsidedown
upstream design
upswell
upwash
urinal
urn
usability test
usance letter of credit
USDV {ultra shallow draught vessel}
UT {ultrasonic testing}
utensil
utiliztion coefficient for sacrificial anode

ullage
ullage board
ullage hole
ullage plug
ullage port
ullage scale
ullage stick
ullage table

ultimate bearing capacity
ultimate bending moment
ultimate limit state
ultimate strain
ultimate strength
ultimate strength method
ultimate stress
ultimate tensile strength
ultimate wet strength

ultra large crude oil carrier {=ULCC}
ultra large crude-oil carrier {=ULCC}
ultra shallow draught vessel {=USDV}
ultra-high frequency {=UHF}
ultra-low frequency {=ULF}
ultra-short wave

ultrasonic
ultrasonic cavitation
ultrasonic detector
ultrasonic fuel oil treatment unit
ultrasonic inspection
ultrasonic testing {=UT}
ultrasonic thickness indicator
ultrasonic wave
ultrasonic welding

umbilical
umbilical cable

umbrella
umbrella antenna

unattended boiler
unattended engine room
unattended machinery space

unbalanced force
unbalanced moment
unbalanced rudder

undamped frequency
undamped natural frequency
undamped oscillation
undamped vibration
undamped wave

undecked boat
undecked skeletal semitrailer
undecked vessel

under beam girder
under deck girder
under deck tonnage
under expansion
under upper deck capacity
under upper deck tonnage
under voltage relay
under water fittings
under water log
under-cooled steam
under-supply
under-water body

underbead
underbead crack

underdeck capacity
underdeck cargo
underdeck passage

undersea boat
undersea boatman
undersea research vehicle

underwater acoustic absorption material
underwater acoustic positioning system
underwater acoustic reflection material
underwater acoustic transmission material
underwater acoustic transponder
underwater acoustics
underwater adhesion
underwater adhesive
underwater blasting
underwater breathing tube
underwater brushable coating
underwater cable
underwater completion
underwater container
underwater craft
underwater cutting
underwater cutting process
underwater damage
underwater explosion tank
underwater fittings
underwater habitat
underwater inspection
underwater laser surveying system
underwater lateral area
underwater launcher
underwater launching way
underwater light source
underwater manifold center
underwater mobot
underwater monitoring station
underwater observation boat
underwater operating machine
underwater ordnance research boat
underwater pipeline
underwater protection
underwater recovery vehicle
underwater research vehicle
underwater resistance
underwater rest station
underwater scooter
underwater ship
underwater sightseening boat
underwater technology
underwater to underwater missile {=UUM}
underwater trajectory
underwater vehicle
underwater video converter
underwater video recorder
underwater welding
underwater working station
underwater-to surface missile {=USM}
underwater-to-air missile {=UAM}

underway
underway lamp
underway replenishment ship
underway trial

unicellular foam
unicellular foamed plastic core

unidirectional antenna
unidirectional filament
unidirectional roving
unidirectional turbine

unified coarse {=UNC} threaded bolt
unified fine {=UNF} threaded bolt

uniflow
uniflow boiler
uniflow engine
uniflow scavenge
uniflow scavenging

uniform flow
uniform load
uniform strength
uniform velocity
uniform wake

union
union bonnet
union joint
union melt welding
union nut
union piece
union purchase system

unit
unit assembly
unit assembly and installation of auxiliary
unit feed system
unit pump

United Nations Framework Convention on Climate Change
United States Coast Guard

universal and socket joint
universal bulk carrier
universal chock
universal coupling
universal fairlead
universal fatigue machine
universal gravitation
universal incinerator
universal joint
universal milling machine
universal mooring chock
universal Schilling rudder
universal screw wrench
universal testing machine
universal underwater mobot
universal valve
universal vibrograph
universal viscosimeter

unloading hatch
unloading valve

unmanned boat
unmanned engine room
unmanned machinery space
unmanned submersible
unmanned underwater vehicle
unmanned vehicle

unsteady cavities
unsteady flow
unsteady wave

unsymmetrical flooding
unsymmetrical intact buoyancy

untethered remotely operated vehicle
untethered vehicle

up cast header
up stroke
up wash
up-grade
up-top

upper bearer
upper bridge
upper bunk
upper cut-off frequency
upper dead center
upper deck
upper deck tonnage
upper fore topsail
upper hatch
upper hoist block
upper lateral bracing
upper mizzen topsail
upper side-band
upper stock
upper topgallant sail
upper topsail
upper turn of bilge
upper tween deck
upper works

upright
upright condition
upright drill
upright position
upright stem
upright tubular boiler

upset
upset butt welding
upset welding

upsetting
upsetting angle
upsetting arm
upsetting machine
upsetting moment
upsetting point

uptake
uptake casing
uptake ventilator
uptake ventilator

upward ventilation
upward welding
upward zero-crossing

urea carrier
urea resin paint

useful capacity
useful dead weight
useful life

utility boat
utility circuit
utility pram
utility test

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