词汇	upper level lifetime
释义	upper level lifetime 上能级寿命
随便看	construction section traffic management construction sector construction security construction regulatory construction reinforce construction reinforcement construction-related construction-relateds construction relationship construction relics construction reorganization project construction repetition construction repetition survey construction report construction request construction requirement Construction Requirements construction requirements review committee construction research construction reserve fund Construction Resources Database construction restricted area Construction Restriction and Quality Assurance Construction Restriction and Quality Assurance! construction return