半集成式中间件
Half integrated middleware
电磁式中间继电器
electromagnetic intermediate relay
非发酵性酸性半干式中式香肠
Non-fermented acid Chinese-style semi-dry sausage
集中式中央空调系统
Traditional central air-conditioning system
接触式中间继电器
contact type intermediate relay
解码转发双向中继
Decode-and-forward two-way relay
双向中继
two-way
Two-way trunk， bidirectional trunk
bidirectional relaying
bi-directional relaying
Two-way relaying
hi-directional relay
two-way trunk
bidirectional trunk