Cold leg recirculation mode will provide long term cooling for the core and hot leg recirculation mode will be used alternately provide reverse flow to the core.

冷段再循环给堆芯提供长期的冷却，热段再循环用于交替地给堆芯提供反向流。

youdao

What with the cold weather and my bad leg, I haven't been out for weeks.

由于天气很冷，我的腿又不好，我已经好几个星期没有出门了。

《牛津词典》

"She'll lose that leg," Enzo heard one of the EMTs, whose face was blanched white from the cold, say.

“她要失去那条腿，”恩佐听到其中一位急诊医生——他的脸因为寒冷而发白——说。

youdao

The birds also likely alternate which leg they stand on to avoid one leg becoming too cold.

BBC: Earth News - Why flamingoes stand on one leg

British duo Andrew Young and Andrew Musgrave did not finish their semi-final as Young had a cold and was feeling low on energy ahead of the last leg.

BBC: Norway power to men's sprint gold

Last year, 75 years after a British climber, George Mallory, disappeared, similar numbers had already started out when Mallory's body was discovered close to the summit, his right leg broken in two places but the flesh miraculously preserved in the cold, dry air.

ECONOMIST: Madness and its men