The battery's polarity must be checked before installation.
在安装之前必须检查电池的极性。
The Earth's magnetic polarity has reversed several times.
地球的磁极性已经反转了好几次。
He studied the polarity of water molecules in chemistry class.
他在化学课上研究了水分子的极性。
The polarity of opinions on this topic is quite strong.
关于这个话题的意见极性相当强烈。
The polarity of the debate made it hard to reach a consensus.
辩论的极性使得很难达成共识。
Ensure the correct polarity when connecting the wires.
连接电线时确保正确的极性。
The polarity of the magnets caused them to repel each other.
磁铁的极性使它们相互排斥。
The speaker's polarity on the issue was evident in his tone.
演讲者在这个问题上的极性在他的语气中显而易见。
Changing the polarity of a circuit can reverse the current flow.
改变电路的极性可以逆转电流的流动。
The polarity of the political parties is causing division.
政党的极性正在导致分裂。
polarity inversion 极性反转
polarity shift 极性转换
polarity reversal 极性逆转
magnetic polarity 磁极性
polarity protection 极性保护
polarity sensitive 极性敏感
polarity test 极性测试
复数: polarities;
