positioner

[化] 定位器

词形变化

positioners 复数 positioners

释义与例句

n.
  1. 1.

    That which positions.

  2. 2.

    That which positions.

    Any mechanical device used to position something.

  3. 3.

    That which positions.

    Any mechanical device used to position something.

    The part of a control valve used to control the opening or closing of the actuator based on electric, or pneumatic signals.

词汇关系

名词

上位词 2

device actuator

词源

From position + -er.

来源：wiktionary