Видео ютуба по тегу Test Tube B

Blood Bank-Forward and Reverse ABORh Blood Typing (Tube method)
Blood Bank-Forward and Reverse ABORh Blood Typing (Tube method)
What are Test Tubes? How to use Test Tubes? Animated Video!
What are Test Tubes? How to use Test Tubes? Animated Video!
EMU CHEMISTRY DEPARTMENT: HEATING A LIQUID IN A TEST TUBE
EMU CHEMISTRY DEPARTMENT: HEATING A LIQUID IN A TEST TUBE