Time-Time-Time Switching Network TTT
estimated time of arriual [= expected time of arrival] {= ETA}
estimated time of departure [= expected time of departure] {= ETD}
expected time of commencement of discharging
expected time of commencement of loading
expected time of delivery
expected time of departure
expected time of finishing discharging
expected time of finishing loading
expected time of interception
expected time of readiness {= ETR}
expected time of return
expected time unloading
expected-time to speed by
expected time of response
accelerated life time test
construction real-time test