英[kə\'ku:nɪŋ]
美[kə\'kunɪŋ]
This is called nesting or cocooning.
这就是所谓的筑巢或结茧.
互联网
The technique of comprehensive cocooning can keep the cocooned from rusting for 2 - 5 years.
综合封存技术可以保证被封存件2 ～ 5年不生锈.
互联网