dilator

常见例句

The outermost dilator can be used as a protective sleeve during pedicle tapping.
在进行椎弓根攻丝时，最外面的扩张器可起到保护性套筒的作用。
What to do: Many people benefit from breathing strips, such as Breathe Right strips, or the nasal dilator Nozovent.
如何做：许多人都从呼吸贴中受益，比如：呼吸辅助贴或者鼻扩张器Nozovent.
It keeps our blood flowing smoothly, it is the strongest dilator (widener), of our blood vessels, it inhibits the formation of blockages (plaques), and it inhibits inflammation.
一氧化氮能保持血流畅通，它是我们血管中存在的最强的扩张剂（扩张血管），还可以抑制阻塞（血栓）的形成，同样地也可以抑制炎症的发生。

The main ingredient in each, alprostadil, is a synthetic version of the blood vessel dilator prostaglandin E-1, which also is found in semen.
FORBES: Health
It also is signing up women for final-phase trials of Alista, which contains a blood vessel dilator that, oddly, is similar to a natural component of men's semen.
FORBES: Quest for Desire