reciprocation

n. 交互作用, 交换, 往复运动 [电] 互易法

发音

US

词形变化

reciprocations 复数 reciprocations

释义与例句

n.
  1. 1.

    The act of reciprocating; interchange of acts; a mutual giving and returning.

    可数 不可数

    the reciprocation of kindness

  2. 2.

    Alternate recurrence or action; as, the reciprocation of the sea in the flow and ebb of tides, or the back and forth motion in a piston engine.

    可数 不可数

    Near-synonym: oscillation

词汇关系

词源

From reciprocate + -ion.

来源:wiktionary