The "double bubble" D8 Series concept is based on a modified tube and wing with a very wide fuselage to provide extra lift.

这款“双气泡”D8系列设计通过将机舱与机翼融合从而形成了一个相对较宽的机身从而提供额外的载客量。

youdao

MIT’s D “double bubble” series design concept is based on a modified “tube-and-wing” structure that has a very wide fuselage to provide extra lift.

麻省学院的D型“两个泡泡”系列设计概念基于改进过的“管状机身和一对后倾机翼”结构，机身更加宽大，可以提供额外的升力。

youdao

This paper mainly discussed about the research on microbubbles generation by metal microporous tube, it is a new method of bubble formation.

本文主要研究了用金属微孔管制造微气泡，这是一种比较新颖的气泡制造方法。

youdao

There's cloud quilt, tube quilt, bubble quilt, muscle quilt and, for those who prefer to visualize in gastronomic terms-popcorn and sausage quilt.

NPR: Excerpt: 'A Splintered History Of Wood'