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1·The tests and methods of double-K fracture parameters for high strength concrete were studied by use of the splitting wedge samples.

采用楔入劈拉试样研究高强混凝土的双K断裂参数测试和计算方法。

2·Roller bearings of cross wedge mill are double-rows taper roller bearings and one of the important parts on mill. It directly bears rolling force when mill works.

楔横轧机滚动轴承为双列圆锥滚子轴承，直接承受轧机运行中产生的轧制力，是轧机关键零部件之一。