valved ['vælvd]

例句:

• Ostracodes are small animals, most of which have a two valved shell.
  介形虫是小型动物, 其中大部份都具有两瓣的外壳.
  来自辞典例句
• A large, valved, brass wind instrument with a bass pitch.
  大型带活塞的低音铜管乐器.
  来自互联网
• Q 20 : Can a valved respirator be used for protection from the virus that causes H 1 N 1 influenza?
  问20:可以用带呼气阀的呼吸防护口罩防甲型(H1N1)流感病毒 么 ?
  来自互联网
• A valved respirator is designed to allow for easy exhalation through a one - way exhalation valve.
  带呼气阀的呼吸防护口罩,其设计是靠一个 单向 开启的阀,直接将呼气排出口罩之外.
  来自互联网