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.
公司对于下列可更换配件：燃烧器，控制器，内浸管，排水阀等可更换配件提供2年有限质量保证。
CORPORATION has a 2-year warranty on replaceable parts-Burner, controls, dip tube, drain valve.
介绍了西门子s7—200P LC控制器，阐述了信息采集过程，论述了自动排水系统的设计。
This paper introduces the Siemens S7-200 PLC controller, expounds the design of the information collection, and discusses on the automatic water drainage system.
设计了以S7- 300PLC为主要控制器的模块化泵房排水控制系统。
With S7-300 PLC as the main controller, has designed a modular pump house drainage control system.
设计了以S7- 300PLC为主要控制器的模块化泵房排水控制系统。
With S7-300 PLC as the main controller, has designed a modular pump house drainage control system.
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