demand valve
plural of staff captain
A mechanism in a diving regulator which controls the supply of gas by opening to provide flow when the user inhales, and shuts off supply when inhalation stops.
A surname.
(obsolete) Therefore. / (obsolete) For this, for this reason; on this account.
潜水者は下降する前に、吸気時に開いてガスを供給し、吸気が止まると供給を止める機構であるデマンドバルブを点検して、呼吸している間だけ空気が供給されることを確認した。
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