单词	toughs
释义	同tough
随便看	fuel-element--failure fuel-element failure instrumentation fuel-element failure--instrumentation fuel-element guide fuel-element hanger fuel-element hanger rod fuel-element hole fuel (-element) jacket fuel (-element)--jacket fuel-element jacket [fuel element] linear power fuel element nozzle fuel element sheath failure monitor fuel-- energy-producing fuel enriched fuel enrichment fuel enthalpy fueler fueler, fueller fuelers fuel exchange fuel exchange, refueling fuel exchange-- refueling fuel exchange; refueling fuel exhaustion