How to read pendulum impact testing machine?

The pendulum impact testing machine can be read as "bang chui shi chong ji shi yan ji". This is a device used to test the performance of materials and products under shock load. It can simulate different impact environments by controlling the energy and impact speed of the pendulum. During the test, the sample needs to be placed on the impact platform of the testing machine, and then the sample needs to be impacted by the free-fall movement of the pendulum. This test method can help engineers understand the strength and toughness of materials, as well as their behavior under impact.