往复运动
Traditional form:
往復運動
Pinyin (reading):
wǎngfùyùndòng
Definitions:
- backwards and forwards action (e.g. of piston or pump)
- reciprocating motion
Characters:
- 往 - to go, to depart; past, former
- 复 - again, repeatedly; copy, duplicate; to restore, to return
- 运 - to run; ship, transport; fortune, luck
- 动 - to move, to happen; movement, action
Traditional characters: