These movements can promote the eustachian tube merge, adjusts the internal ear pressure, reduces or prevents the earache.

这些动作可以促进咽鼓管合并，调节内耳压力，减轻或防止耳痛。

youdao

The tube worm has no mouth or digestive organs.

管虫没有嘴，也没有消化器官。

youdao

We know they smear a liquid on the tube, but we don't know where they secrete it from or what its chemical composition is.

我们知道它们在管上涂抹了一种液体，但我们不知道它们从哪里分泌出这种液体，也不知道它的化学成分是什么。

youdao

So we'll take h 2 and we'll run -- or actually we'll have h 2 filled in an evacuated glass tube.

我们马上就会在氢原子上试一试,我们用氢气-我们把玻璃管充满氢气。

麻省理工公开课 - 化学原理课程节选

Guppies can splash in the Little Kahunas play area, while bigger kids can slip down the high-speed tube slides or shoot hoops in the pool.

BBC: Daily deal: Two nights in the White Mountains

Dr. Edwards and Dr. Steptoe worked with no public funding or direct research support at a time when the concept of a test-tube baby seemed the stuff of Orwellian science fiction.

WSJ: Test-Tube Baby Pioneer Robert Edwards Wins Nobel Prize for Medicine

These printers use something like a toothpaste tube of plastic or other material held vertically in an X-Y plotter that squirts out thin layers of tiny dots of material that build up, layer by layer, to produce a 3D replica of the computer-generated design.

FORBES: Why I Believe That This Will Be The Most Innovative Decade In History