直通中继线
direct trunk line
直通
straight in
直通电路
through path
直通阀
straight line valve; straight way valve
直通干燥炉
through feed dryig furnace
直通接头
Barrel connector
直通进给法
thorough feed method
直通进给轮磨法
thorough feed method
直通连接
through connection
直通路径
through path
直通群
through group
直通通道
put-through channel
直通线
through line
直通型检测器
flow-through detector
直通性反射
guiding reflex
直接中继系统
direct repeating system
直接中继制
direct trunking system
中继
relay
中继传输
relay transmission
中继传输信息组
intermediate transmission block