Galvanized metal thickness and uniformity of size. Inside, there are water pipes. Plumber one tap with hose clamp steel force twice during the time interval between 0.6 seconds if the sound waves that occur in metals with 4,000 metres per second and the speed in water is 1,400 meters per second. Find locations on the water pipes to rattle more than usual, measured from the point of tapping.
การแปล กรุณารอสักครู่..
