1. The bumps on a whale's flipper help form vortices that generate more lift, more smoothly. 鱼鳍上突起的部分有助于形成涡旋，这些涡旋以更平稳的方式给鲸鱼带来更多的上升力。
2. The collision of steel strip with flipper guide on finish rolling unit is the reason of scar defect. 分析认为钢板撞击精轧机组侧导板是产生结疤缺陷的原因，而冷轧板成串孔洞则是结疤缺陷的遗传产物。
3. E. control unit that flipper slips and precision adjustment, operators can manage the machine and operational data, HIGHWAYVISTA you can bring up the production of current and historical data. 控制单元，用于迅速换单和精准调整，操作员可以管理机器和作业数据，HIGHWAYVISTA则可以调出当前和历史生产数据。
英英解释
n.
1. a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater)
2. the flat broad limb of aquatic animals specialized for swimming
