7.3. Tools for measuring vibration.7.3.1. the SEISMOMETER: Seismometers is a tool that measures the movements of the ground seismic waves, including from earthquakes. The volcanic eruption and earthquake, and other sources. 7.3.1.1. the Conventional spring and pendulum Seismometer: includes and works on the principle of inertia-sensitive pendulum movement up and down the surface of the Earth.
การแปล กรุณารอสักครู่..
