片语
time of useful function机能失效时间
working life工作寿命,使用寿命;适用期
time is useful杜门涯
Extending The Useful Time延长使用寿命对
time of useful consciousnessTime of useful consciousness (TUC) is defined as the amount of time an individual is able to perform flying duties efficiently in an environment of inadequate oxygen supply. It is the period of time from the interruption of the oxygen supply or exposure to an oxygen-poor environment to the time when useful function is lost, and the individual is no longer capable of taking proper corrective and protective actio
time useful consciousness有效意识时间
useful consciousness time有效意识时间
useful life使用寿命;有效期
computer useful time计算机有效时间