shuìdài, diànzi, hòu wàzi, bǎonuǎn wàitào dōu yào àn zuìdīwēn zhǔnbèi

睡袋、垫子、厚袜子、保暖外套都要按最低温准备。

Sleeping bags, pads, thick socks, and warm coats should all be prepared according to the lowest temperature.