皮带开始绕在拖拉机的皮带轮上.The belt started wrapping up on the tractor pulley.首先把V形皮带挂到缝纫机皮带轮上.Put the V belt on the pulley of the sewing machine.通过简单的更换皮带轮的方式可以达到搅拌工艺的灵活调整.Process flexibility can be achieved through a simple and ea...
A big archway leads through into a courtyard.一条大拱道直通向一座庭院.Access was via a narrow archway.通道入口是一道狭窄的拱门。We went through a stone archway into the courtyard.我们穿过石拱门进入院子。The archway between the two buildings had been glassed...
所有骑摩托车的人都必须戴头盔，这是强制性的。It is compulsory for all motorcyclists to wear helmets.工人董事的任命是不是强制性的?Is the appointment of worker - directors to be mandatory?此事已通过强制性仲裁得到解决.It was settled by compulsory arbitration....