The theoretical basis of pulse hammer excitation method used to detect the damage and measure the dynamic elastic modulus of solid wood flooring is briefly explained.
介绍了脉冲锤击法检测实木地板损伤及测定其动态弹性模量的理论依据，并通过有限元模拟与试验验证了其可行性。
The production of hammer pipeline vibration resistance and pulse pressure, does not crack, and at the same time, the cleanness of aging in extremely high, without impurities.
公司生产的破碎锤管路耐振动和脉冲压力，不会开裂，同时耐老化，管中清洁度极高，无杂质。
Water hammer produced by valve opening was studied through an experimental platform which was self propelled in order to study Barometric Pulse Method.
为了更好的研究气压脉冲法，通过自行设计搭建的试验平台，对开阀水锤这种瞬变流进行了研究。
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