过去淮河流域通信比较落后,水利部门没有自己的通信设施,每到汛期和搞大型工程建设,靠租用邮电部门电路。由于邮电部门电路容量紧张,话务负荷重,通信往往得不到保障。我们的防洪重要闸坝又几乎都在偏远地区,这些地区很少有邮电线路,只有用短波无线电台以电报的方式传递消息,遇到雷雨天气,这种方式 In the past, the communication in the Huaihe River Basin was relatively backward. The water conservancy department did not have its own communication facilities. Each flood season and large-scale construction project relied on the leasing of posts and telecommunications departments. Due to the strain on the circuit capacity of post and telecommunications departments, heavy traffic load and communication are often not guaranteed. Almost all of our important flood gates are in remote areas. There are very few post and telecommunications lines in these areas. Only by using shortwave radios telegraph messages and encountering thunderstorms, this approach