单词	trefi
释义	同tref
随便看	out-of-step out-of-step blocking out-of-step domain out-of-step operation out-of-step operation with excitation out-of-step protection out of step protection relaying out-of-step protection relaying out-of-step protective relay out-of-step relay out-of-step relay，step out relay out-of-step switching out-of-step tripping out of step (with) out of step with out of step with ... out of stock out-of-stock out-of-stock cost out of stock costs out of stock indefinitely out of stock indefinitely {=osi} out of stock {=os} out of stock{=os} out of stock 脱销