In a heavy downpour, however, the park land that is next to the river doubles up as a conveyance channel, carrying the water downstream.

Language communication, as an important channel for idea exchange and information conveyance, is intrinsically a process of language use in a specific context.

Usually, in the high head hydroelectric power station where long channel has been used as a water conveyance structure one surge tank and one penstock may serve more than one machine.