片语
curt expectation of life简略平均预期寿命
curtate expectation of life整数期望寿命
mean expectation of life平均寿命
expectation of working life预期工作寿命
rated life[电][机] 额定寿命;平均寿命
life expectancy预期寿命;平均寿命
expectation E of life估计寿命
complete expectation of life完全平均余命
loss of expectation of life生命期望的丧失
comp lete expectation of life完全生命期望
the expectation of life寿命