…它能做,但是同样的回答pplies as was supplied above: the ground is not radiating heat to the sky but at the underneath of a car, and vice versa. This means that the ground temperature beneath the car will be slightly higher than, say, the windscreen of the car, which is seeing the sky. Also, the ground beneath the car will have lower air-flow, so less water-laden air will circulate over the surface, even if it does become sufficiently cold to freeze, so the rate of frost formation beneath the car is going to be lower for that reason too.
Yes
…它能做,但是同样的回答pplies as was supplied above: the ground is not radiating heat to the sky but at the underneath of a car, and vice versa. This means that the ground temperature beneath the car will be slightly higher than, say, the windscreen of the car, which is seeing the sky. Also, the ground beneath the car will have lower air-flow, so less water-laden air will circulate over the surface, even if it does become sufficiently cold to freeze, so the rate of frost formation beneath the car is going to be lower for that reason too.