home port [= port of registry]

ballast distributing and trimming machine；ballast distributing and regulating machine

ballast water and de-ballast water

F-port Fiber Port

L-port Loop – Port

NL-Port Node Loop Port

N-Port Node Port

port to port

port -to- port isolation

Port-to-Port

port-to-port encryption

security from port to port

ZV Port Zoomed Video Port

36 W ballast

AC electronic ballast

adaptive ballast

additional ballast water

addressable digital transfer electronic ballast

adjustable impedance type ballast