使用: make use of; use; employ; ap ...期: designated time试验: experiment; test; trial使用期限试验: length-of-life test; life test使用期: lease; life durability; lifetime; period of use; spreadable life; usage period; usage time; used life; useful life; working life播种期试验: date test长期试验: long run test; long term test; long test run; long time test; long-run test; long-term testing; permanent experiment; permanent testing; prolonged test; test of long duration长周期试验: long period test初期试验: initial test; initial trial定期试验: periodic test; routine test定期试验表: routine test schedule短期试验: short term tests; short time test; short-term test; short-time test短周期试验: short-period test二期试验: phase ii trials; secondary testing三期试验: phase iii trials四期试验: phase iv trials一期试验: first pass testing; phase i trials诱导期试验: induction period test; inductionperiodtest中期试验部: division of pilotscale testing周期试验: periodic test不堪使用期: unserviceability period长使用期: high time长使用期限: long life储罐使用期: tank life工件使用期: dauerlaufteil service life part / part to be subject to durability test