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

而在降雨时节，紧邻河流的公园区域便充当了输水渠道，输送水体向下游流动。

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

言语交际是人们沟通思想、传递信息的重要方式。它实际上是在特定的语境中具体运用语言的过程。

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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.

在高水头引水式水电站中，通常几台机组共用同一调压井，且共用压力主管。

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