【计】 retrofit testing
renovate; replace; update; rebirth; rejuvenescence; renew; renewal; renovation
【计】 innovations; interchanging; retrofit; U; update; updating
【医】 kainogenesis; turnover
【经】 reconditioning; renew; renewal
experiment; test; try; try on; try out; examination; experimentation; trial
trial run
【计】 breadboarding
【医】 probation; test; tria
【经】 test; trial