Το καλάθι σου είναι άδειο.
Lung test by volume measurement
Lung test by volume measurement
Let's measure the capacity of the lungs using nothing but a plastic bottle, a rubber tube and a plastic bowl.
01:54
Φυσική
7 – 10. τάξη
Λέξεις/κλειδιά
mozaLink
/Σύνδεσμος Web