资料来源 : Free On-Line Dictionary of Computing

bathtub curve
     
        Common term for the curve (resembling an end-to-end section of
        one of those claw-footed antique bathtubs) that describes the
        expected failure rate of electronics with time: initially
        high, dropping to near 0 for most of the system's lifetime,
        then rising again as it "tires out".  See also {burn-in
        period}, {infant mortality}.
     
        [{Jargon File}]