Definition
attr./n.
positive and negativeplus-minus (in mathematics, electricity, etc.)
Examples
- 正负。zhēng fúhào zài shùxué zhōng hěn zhòngyào.The plus-minus sign is very important in mathematics.
- 正负。Zhège shíyàn xūyào cèliáng zhēng diànhè.This experiment needs to measure positive and negative charges.
- 正负。zhēng liǎng gè fāngxiàng dōu yào kǎolǜ.Both positive and negative directions must be considered.
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