A "sink of energy" as used in this definition is an element or network which is designed to absorb energy, by converting electrical energy into another form of energy.
(A "sink of energy" as used in this definition; is; an element or network which is designed to absorb energy,) (an element or network; is designed; to absorb energy) (an element or network; to absorb; energy)
A "sink of energy" as used in this definition an element or network an element or network
is is designed to absorb
an element or network which is designed to absorb energy,
to absorb energy
energy