往复运动alternating motion;back-and-forth movement;reciprocating motion详细»
往复运动reciprocal motion;reciprocating motion;reciprocation;shuttling;to and fro movement;toandfro movement详细»
往复运动alternating motion;alternative motion;reciprocal action;reciprocate;reciprocating motion;reciprocation详细»
往复运动advance and return movement;back and forth motion;back and forth movement;jigging motion;reciprocal motion;reciprocating motion;reciprocating movement;reciprocation;to and fro motion详细»