vasoconstriction [ˌveɪzoʊkənˈstrɪkʃn]

例句:

• The addition of epinephrine to local anesthetic solutions produces vasoconstriction.
  局麻药溶液中加入肾上腺素,使血管收缩.
  
• Histamine causes vasoconstriction and increased permeability of small venules.
  组织胺能引起血管收缩,并增强小静脉的透性.
  
• Vasoconstriction and vasodilatation are separate mechanisms.
  血管的收缩和扩张分别具有不同的机理.