| 单词 | bivouac bag | 
| 释义 | > as lemmasbivouac bag   bivouac bag  n. Mountaineering a waterproof sleeping bag used outdoors instead of a tent; cf. bivvy bag n. at bivvy n. Additions. ΚΠ 1963    S. Styles Necklace of Glaciers iii. 41  				A more elaborate alternative is the nylon bivouac bag to house two climbers, which is in effect a simple tent that could be slung on a rock-face. 1995    Independent 6 Feb. 5/5  				We knew what the survival procedures were. We dug a snow hole and got inside our bivouac bags. < as lemmas  | 
	
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