valve

バルブ、弁

開閉して、管を通る液体や気体の流れを調節する装置。

やさしい英語で： A device you open or close to control the movement of liquid or gas through a pipe.

• Close the valve to stop the water.
• He turned the valve slowly.
• A leaking valve caused the pressure to drop.

よく使う表現： open the valve, close the valve, gas valve

逆止弁

液体や気体を一方向にだけ通し、逆流を防ぐ装置。

やさしい英語で： A device that lets liquid or gas pass in one direction and prevents it from flowing back.

• The valve prevents water from flowing back.
• A faulty valve allowed air to escape.
• These valves keep the liquid moving in one direction.

類義語： check valve, non-return valve

よく使う表現： one-way valve, check valve, non-return valve

弁

血液などを一方向に通し、逆流を防ぐ、体内の薄い部分。

やさしい英語で： A thin part inside the body that lets blood or other material pass one way and stops it returning.

• One heart valve was damaged.
• The surgeon replaced the faulty valve.
• These valves prevent blood from flowing backward.

よく使う表現： heart valve, aortic valve, valve replacement

エンジンバルブ、弁

開いて空気や燃料をエンジンに入れたり、排気ガスを出したりする部品。

やさしい英語で： An engine part that opens to let air and fuel enter, or used gases leave.

• The engine has a damaged valve.
• The mechanic replaced two exhaust valves.
• Each intake valve opens to let air into the cylinder.

よく使う表現： exhaust valve, intake valve, engine valve