Read Edit View history 往复运动 wǎngfùyùndòng reciprocation Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 往复运动/往復運動 · wǎngfùyùndòng · reciprocation 2026/03/04 往复运动 / 往復運動 wǎngfùyùndòng reciprocation back-and-forth movement along a linear path, typical of mechanical components like pistons or pumps 活塞在气缸内进行往复运动。 created sense Mar 4, 2026, 02:25 AM