In the remote automatic control irrigation system, the cost of data communication, generally accounts for 50% of the total input of the project.
在灌溉远程自动控制系统中，数据通讯部分的工程投入，一般占工程总投入的50%以上。
Special points of the project cost of railway satellite communication are analyzed, and how to control the cost in various links of project implementation is discussed.
详细分析铁路卫星通信工程费用的特殊点，探讨了在项目实施的各个环节如何控制成本。
Owing to the fast speed, low cost, powerful programmable capability, it can be widely applied to require all kind of complicated control and real time communication area.
由于其速度快、成本低、可编程能力强，可广泛应用于各种需要复杂控制和实时通信的领域。
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