【电】 equisignal zone
class; grade; rank; wait; when
【机】 iso-
better; by force; make an effort; powerful; strive; strong; stubborn
【电】 a-n signal a-n; sign; signal
area; borough; classify; distinguish; district; region; section
【计】 region
【医】 area; belt; field; quarter; regio; region; zona; zone