地上和地下管道，阀门，排水渠，控制器和电线在一个景观灌溉系统的所有元素。
Underground and aboveground pipes, valves, drains, controllers and electrical wiring are all elements in a landscape irrigation system.
地上和地下管道，阀门，排水渠，控制器和电线在一个景观灌溉系统的所有元素。
Underground and aboveground pipes, valves, drains, controllers and electrical wiring are all elements in a landscape irrigation system.
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