Each hair on a person's head grows from a single tube-like hole in the skin called a follicle.

VOA: special.2011.04.05

Let's look at the energetics of one of those electrons crashing into a hydrogen atom inside the gas tube.

我们一起来考察一下,其中的一个电子的能量,在阴极射线管中,撞击到氢原子上。

麻省理工公开课 - 固态化学导论课程节选

What's shown in this diagram is the progress of the developing embryo as it travels in time, down the fallopian tube.

这张图上显示的,就是胚胎发育的过程,是按照它在输卵管中移动的时间排序的

耶鲁公开课 - 生物医学工程探索课程节选

Samsung's Vacuum Tube Soundbar (model HW-F750) is the first soundbar to feature a built-in vacuum tube to maximize sound quality, and is the world's first soundbar that can wirelessly connect with a TV via Bluetooth.

ENGADGET: Samsung introduces its CES audio hardware, claims a world first

Airport operator BAA has also launched a poster campaign on London's Tube.

BBC: Time to change Heathrow runway policy, says Tim Yeo

New in 2013, Samsung's vacuum tube technology will be integrated into the HW-F750 soundbar so consumers can enjoy the rich, powerful sound quality they desire.

ENGADGET: Samsung, Flo Rida introduce massive Giga Sound MX-FS9000 speakers (update: hands-on video)