夯击机 meaning in English

machine rammer

Standard test method for laboratory measurement of impact sound transmission through floor - ceiling assemblies using the tapping machine
利用夯击机进行冲击声通过地板和天花板组件的实验室测量标准试验方法
Standard test method for field measurement of tapping machine impact sound transmission through floor - ceiling assemblies and associated support structures
通过地板和天花板组件及相关支承结构的夯击机撞击声的现场测量的标准试验方法