зустрічно-паралельне вмикання (напр., електронної лампи)
back-to-back circuit
back-to-back radio stations
back-to-back relay
barrel-type connection
connection pipe leading
water pipe connection
base junction; rotary collector ring (box); rotary base junction (of a tank); rotary connection; slip ring; traverse rotary base junction
drain connection
pneumatic ground service connection
accordant connection
base connection
cascade connection
establishment of voice connection
voice connection
voice or data connection
aiding connection
delayed connection
delta connection
bridge connection
bridging connection
built-up connection
dial-up connection
telephone connection
connection
limber connection
shore connection
ground strap connection
coax connection
maintain a connection
back-up fire control
back-up system
cut back co-operation