1) Acts as a counterbalance 2) Compensates for 3) Counterbalances 4) Is a counterbalance 1) Counteracts 
See lofting
Measurements supplied by a designer for the builder in order to lay down the lines of the hull. Glen-L patterns eliminate the need for a table of offsets. 
A concept whereby emissions from proposed new or modified stationary sources are balanced by reductions from existing sources to stabilize total emissions. (See bubble, emissions trading, netting)