To adjust the representation of a quantity by a factor in order to bring its range within prescribed limits.

用一个因子来调整一个量的表示，以便将其值的变动范围纳入到规定的限量以内。

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It is prohibited to mine the coal with toxic or harmful substances, such as radioactive and arsenic, that exceed the prescribed limits.

禁止开采含放射性和砷等有毒有害物质超过规定标准的煤炭。

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The control system functions to keep speed of the machines substantially constant and the voltage within prescribed limits, even the load may change.

控制系统的功能是在负载随时变化的工况下，确保机组转速恒定，并使电压输出控制在要求范围之内。

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Doctors say the cough syrup contains codeine phosphate which, if taken beyond prescribed limits, makes people "drowsy and intoxicated".

BBC: India state restricts 'addictive' cough syrup sale

But if the DEA doesn't see abuse potential for Rozerem, it might be prescribed without any of the limits that make marketing the other drugs difficult.

FORBES: Magazine Article