这个电池提供的电压是3.7伏特。

This battery provides a ___voltage of 3.7 volts.

不同设备需要不同的电压才能正常工作。

Different devices require different ___voltages to function properly.

决赛前，赛场充满了紧张的气氛。

The arena was filled with high ___voltage of tension before the final match.