这款空调能在超低温环境下高效运行。

This air conditioner operates efficiently at ___ultra-low temperatures.

这款冰箱采用超低功耗技术，非常节能。

This refrigerator features ___ultra-low power consumption, making it highly energy-efficient.

这款超低功耗的智能手表充一次电可以用两周。

This smartwatch with ___ultra-low power usage can last two weeks on a single charge.