They started out slower, adding duration and intensity every two weeks.

他们开始时以慢速练习，每两周增加一次时间和强度。

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You can slowly increase the duration and intensity of your activities as you become more fit.

在您变得合适时，可以慢慢增加活动的时间和强度。

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The variation of air mean temperature and annual precipitation played a key role in the duration and intensity of cumulative impacts on desertification.

年降水量和年平均温度的波动特点是决定累加作用时间和影响强度的关键。

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For Bentham, all that matters, you'll remember, are the intensity and the duration of a pleasure or pain.

对边沁来说，要记住，真正重要的，是快乐或痛苦的强度和持续时间。

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And so we might need to work out various, more complicated, formulas here, where we multiply the pain times its duration and take into account its intensity, get the sheer quantity of pain that way.

我们需要编制出各种，更复杂的公式，以便增加痛苦的倍数，延续时间,还要考虑痛苦的强度，获得痛苦的纯量。

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"To be prudent, I'd recommend cutting exercise duration and intensity when symptoms are present, " says Woods.

CNN: Signs you're too sick to work out

They collected data from commercial aircraft flight recorders, which record the location, duration and intensity of turbulence.

MSN: Blame gravity waves for turbulence - Technology & science - Science - LiveScience | NBC News

The frequency, duration and intensity of extreme weather events are expected to rise with climate change, increasing the need for risk management.

UNESCO: MEDIA SERVICES