U字彙

ultrasonic
unavailability
unbiasedness
unbounded solution
unburdening
uncertainty
unconditional branching
uncontrollable variable
uncorrelated random variables
uncoupled modules
underflow
underlying policy
undershoot
underwriter
undifferentiated marketing
undirected graph
unimodal probability density function
union
units-of-output method
universe
unmanned factory
unpacking
unreliability
unscheduled maintenance
unstructured maintenance
unsymmetric dual problem
updating
upload
usability
usage rate
use value
users expection method
utiles

unavoidable delay
unavoidable delay allowance

unbalanced assignment problem
unbalanced transportation problem

unbiased estimate
unbiased estimator
unbiased test

uniform annual series
uniform annuity
uniform demand
uniform distribution
uniform gradient
uniform gradient series
uniform prior distribution
uniform replenishing rate
uniform series compound amount factor
uniform series present worth factor

unit column vector
unit cost
unit item
unit load
unit price
unit record card
unit record machine
unit step function
unit testing

universal data base access service (UDAS)
universal product code

unrestricted element
unrestricted job

up time
up time ratio
up-grade

upper bound
upper bounded linear programming problem
upper control limit (UCL)

useful life
useful life period
useful working life

user documentation
user friendly

utility
utility function
utility modules
utility program
utility theory

utilization factor
utilization parameter

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