当电量不足时,它可以安全着陆。
你试图打电话求救,但手机电量不足且没有信号。
You try to call for help, but your cellphone is out of power and out of range.
就餐平面上有表示何时电量不足的彩色圆圈,以及通过触摸寻求帮助的图标。
The surface has colored rings to indicate when power is low and icons to touch to call for help.
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