piston valve

名词 n.
中文释义

英文释义

名词 n.
  1. A valve which uses a hollow or double piston sliding in a cylinder to direct fluid along one of two paths
    — We already know that a balanced slide valve requires about half as much power to move it as an unbalanced valve, but the piston valve requires only about half as much as the balanced valve.

词形变化

piston valves plural
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