n.交替函数；交替行列式
adj.交替的；交互的

The alternant current flows in opposite directions at regular intervals.
交流电在固定的时间间隔内向相反的方向流动。
Our power supply uses alternant current instead of direct current.
我们的电力供应使用交流电而不是直流电。
The alternant voltage changes its polarity periodically.
交流电压周期性地改变其极性。
This machine is designed to convert direct current into alternant current.
这台机器被设计用来将直流电转换为交流电。
In the United States, the standard frequency for alternant current is 60 Hz.
在美国，交流电的标准频率是60赫兹。
The alternant current system was first developed by Nikola Tesla and George Westinghouse.
交流电系统最早是由尼古拉·特斯拉和乔治·威斯汀豪斯开发的。
The alternant current generated by the generator is transmitted through power lines.
发电机产生的交流电通过电线传输。
Most household appliances use alternant current because it can be easily converted to different voltages.
大多数家用电器使用交流电，因为它可以轻松转换为不同的电压。
The alternant current produced by a dynamo depends on the speed of rotation of the armature.
发电机产生的交流电流取决于转子的旋转速度。
The alternant current flows back and forth in a circuit, whereas direct current flows only in one direction.
交流电在一个电路中来回流动，而直流电只在一个方向上流动。