Marking: UL1423is no marking on wire.

标识：UL 1423的电线上无标识。

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Simulated experiment in closed-loop shows the system has no marking transient as appearing twice fault and that the redundancy design is rational and reliable, which will get a wide field of aviation.

系统闭环故障仿真试验研究表明，系统二次故障具有无痕切换能力，验证了系统设计的合理性和高可靠性。

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There were no signs marking the international border, no fences, no barbed wire.

这儿是没有任何标记的国际边界，没有围墙，没有铁丝网。

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While Chicago landmarked the building, there is no hint of its past life - no plaque marking the spot or jazz tchotchkes for sale.

BBC: Chicago's jazz and blues shrines

Even though there is no sign marking the bar's location at the back of the restaurant, the 50-person space is so popular that there's often a waitlist to get in.

BBC: The best cocktail bar in the US

Mr. Kennedy made it his mission to find the blueprints in the early 1990s after he stepped out of a subway near the Ebbets Field site at Bedford Avenue and Sullivan Place in Crown Heights and was astonished to see that there was no plaque marking the location of the iconic stadium.

WSJ: Soon on Display in Brooklyn: 'Holy Grails' of Baseball