记忆方法
1、pol- + -arity(复合后缀).
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词族 · polarity
词形变化
派生词
中文词源
polarity 两级化，截然对立
来自pole,地级，两级，-ity,名词后缀。
英语词源
- polarity (n.)
- 1640s, originally of magnets, from polar + -ity.
权威例句
- 1. the growing polarity between the left and right wings of the party
- 党内左右两派间日益明显的对立
- 2. Polarity is inherent in a magnet.
- 极性是磁铁的固有性质.
- 3. There are miscellaneous tools, pliers , putty knife, polarity stamps, battery stamping or coding equipment, lead cutters.
- 有各种工具 、 手钳 、 油灰刀, 极性印戮 、 电他标记打印或编号机 、 铅切刀.
- 4. The polarity of the ends of the open - circuit conductor may then be deduced.
- 这样就可以断定开路导体两端的极性.
- 5. It is not possible to try to salvage or change the polarity correctly by charging.
- 试图补救或通过充电的方法把极性改过来是不可能的.