Slide 11 Chapter 7 Equilibrium-Stage Operations Slide 2 2 One class of mass-transfer devices consists of assembliesof individual units, or stages,interconnected so that the…
* Abacus -To understand the numeration- Regional Office for In-service Training in Thies JICA Volunteer MITSUNAGA Norito * 1. Counting numbers (2weeks) Objects Let’s count…