The first navigational lights in the New World were probably lanterns hung at harbor entrances.

灯塔在新大陆上，最初的航标灯要算那些挂在港湾入口的提灯了吧。

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Having 32 flash rhythms, it is suitable for road obstructive light as well as small navigational lights in inland waterways and along coastline.

它可储存32种闪光灯质，适用作小型岸标灯、浮标灯以及公路障碍灯。

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Organisers of the annual initiative, now in its fifth year, say the bright lights disorientate the migrating birds and override their natural navigational cues.

组织者们自发一年一度的活动，到今年他们是第五次了。他们称，明亮的灯光会使候鸟们失去方向感，还会打乱他们的天然航行信号。

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