本文利用示波冲击试验，对船用921 A钢动态断裂韧性的测试方法进行了研究。
In this paper, the dynamic fracture toughness measuring method for 921a shipbuilding steel is studied by instrumented Charpy impact test.
冲击波的测试是动态测试中难度较大的测试问题。
The test of shock wave is a difficult problem in dynamic measurement.
利用热压烧结法制备了梯度型陶瓷—金属复合材料，并对其静态压缩性能和动态冲击压缩性能进行了测试。
The gradient ceramic-metal composites was prepared by the hot-press sintering method, and the static and dynamic mechanical performance were tested.
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