Terms containing unidirectional ring

Subject	English	Chinese
seal.	unidirectional L-ring	单向 L 形环
IT	unidirectional path protected ring	单向通道保护环
el.	unidirectional path switching ring	单向通道交换环
IT	unidirectional ring	单向环
tech.	unidirectional ring laser	单向环形激光器
el.	unidirectional ring resonator	单向环形谐振器
el.	unidirectional ring resonator	单向环形共振器