帧中继转换节点FRSN ?
帧中继转换FRS ?
One day it is a frame relay switch, the next it is your ISDN router.
这一天是帧中继交换机,这是你们未来的ISDN路由器。
A float operated switch in the relay is used to initiate an alarm signal.
继电器内的浮控开关发动报警信号。
Relay ", a relay is an electrical switch."
继电器是一个电的开关。
Another example is the relay, an electrically-carrying switch.
另一个例子是,继电器,电气载开关。
For correct installation use a multiple pole switch or relay as shown below.
多台执行器连接的正确方式是使用多级转换开关和继电器。
For correct installation use a multiple pole switch or relay as shown below.
多台执行器连接的正确方式是使用多级转换开关和继电器。
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