Small rectangular backup bars were used to fabricate the web - bottom flange connection.在腹板与下翼缘的施焊中使用小矩形挡板.Stop lights, backup lights , and four - way emergency flashers also aid in vehicle safety.停车灯 、 倒车灯和紧急闪烁灯也是有助于车辆安...
The Morse Code is made up of dots and dashes.莫尔斯电码由点和画线组成.The old wolf dashes regardless into the bush.狼发疯般不顾一切地冲进灌木林.The track events will include dashes, middle distance races , long distance races, etc.竞赛项目包括短跑 、 中长跑等...