In data transmission, this is limited to a variable time interval between characters, and is often known as start-stoptransmission.
在数据转输中，仅指相邻字符间的时间间隔不规则。这种传输方式通常称起止式传输。
2
An electric shock and various life-saving automatic pressure instrument which mainly comprises an air transmission device and a motor start-stop and positive inversion control circuit;