信號: signal; semaphore; gun單元: unit; unit element; cell; lo ...指示: indicate; point out instruct符: tally symbol; mark二元指示符: dyadic indicant一元指示符: monadic indicant空信號單元: empty signal unit信號單元: signal element; signaling unit; su signal unit一元指示符, 單向指示符: monadic indicant數(shù)字變元指示符: numeric argument indicator插入信號單元: fill-in signal unit初始信號單元: initial signal unit獨(dú)立信號單元: alone signal unit (asu)多級信號單元: multilevel signal element多重信號單元: msu multiple signal unit復(fù)合信號單元: compound signal element后續(xù)信號單元: subsequent signal unit空閑信號單元: isu idle signal unit鏈路信號單元: link state signal unit起始信號單元: start signal element確認(rèn)信號單元: acknowledgement signal unit填充信號單元: fill in signal unit fisu; fill-in signal unit停止信號單元: stop signal element同步信號單元: syu synchronization signal unit維護(hù)信號單元: msu maintenance signal unit
