往返移动 meaning in Chinese

shuttlecock

The cable crane is a sort of special hoisting machinery , which uses flexible cable hung between two fulcrums as carrying structure , makes use of the crane carriage moving over the carrying cable to work , and hold the ability of vertical transporting and horizontal transporting
缆索起重机是一种以悬挂于两支点之间的柔性钢索作为大跨距承载结构、利用载重小车在其上往返移动进行工作、兼有垂直运输和水平运输的特种起重机械。
4 . chinese snub - nosed monkey in studying area show the going out and back activities between sleeping and feeding sites , but in yearly circle the monkey moves and wanders clockwise around xiaoshennongjia mountainland . the reason for forming the pattern of this behavior is discussed and analyzed in detail
在本研究区域，川金丝猴日活动有往返移动于夜宿地和取食区的情况，而在年周期中，猴群表现为围绕小神农架按顺时针方向游荡的规律，文中对活动路线和该规律形成的原因做了较详细的记述和分析。