“发报机”的英语

“发报机”的拼音为：fā bào jī...

发报机滴滴答答地发出电报.The telegraph ticked out a message.一台发报机可发射两种讯号:点和线.A telegraph can transmit two different signals : a dot and a dash.这个简易的发报机在测试中的表现是出人意料地好.This simple transmitter has been shown in tests to work surprising...