... [stern light] 在船尾显示的白色航行灯 [backup light] 装于汽车尾部的灯,汽车倒退时即开启照亮汽车后面的路面 [urosteon] 某些鸟类胸骨龙骨脊背部的正中骨化 ...
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This car backup light with light and sound warning function.
本产品属于一种具有声、光报警功能的汽车倒车灯。
Due to the merit of small volume, light weight and low cost, mobile generator is widely used as backup or mobile power supply.
移动发电机具有体积小、重量轻、成本低等优点，被广泛应用在需要备用和移动电源的场合。
It is bright enough to be used as a primary light, and compact enough to be used as a backup.
它发出的光足以作为主灯使用，而且他非常小巧也可以作为备用。
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