英:[ded eə(r) speis]
美:[dɛd er spes]
英:[ded eə(r) speis]
美:[dɛd er spes]
气流停滞区,闭塞空间
noun
an unventilated air space
noun
an unventilated air space
The first known use of dead-air space was in 1902
1 To achieve this unheard-of level of versatility, Alpha employs a knit construction with the full structural integrity of a fabric and creates downlike dead-air space without the need for breathability-reducing container fabrics.
2 That extra loft also creates dead-air space to insulate you from the ground.