Secondly there is error between the thread roll angles of thread rolling die and drill rod.

滚丝轮螺纹和钻杆螺纹的螺旋角有误差。

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The some experienced data have been given, so the cold rolling die design is more simple and practical.

其中给出的部分经验数据使冷辗模具设计简单实用。

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The arrangement of the wedge rolling die was described, and the design and calculating procedure for the wedging zone, spreading zone and finishing zone were stated.

并对楔形横轧模具的布置以及楔形横轧模具的楔入段、展开段和精整段的设计计算过程作了介绍。

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SUVs' occupants are three times more likely to die from their vehicle rolling over than are the occupants of saloon cars.

ECONOMIST: America's favourite mode of transport is under attack

"It's important to stress once again that without imposing the extra health and safety measures, which all come at a considerable cost, the Cooper's Hill Cheese Rolling Event will not go ahead and eventually the tradition would die, " Mr Jefferies said.

BBC: Ticket prices for new cheese rolling festival announced